3D Printed Evolution of Drone Munitions

Since Russia’s invasion of Ukraine in February 2022 the use of drones for reconnaissance and tactical missions has evolved so rapidly it has come to characterise the war. The tactic of dropping hand grenades from commercial drones has evolved into the use of larger drones and larger munitions and the use of first person view (or FPV) one-way, kamikaze drones.

L-R: V3 XL ‘Big Mac’, V2, V1 & small VOG-sized casing (via Joe MacDonald)

Joe MacDonald, a British volunteer currently fighting in Ukraine, has kindly shared a short video showing some of the newest munitions that have been in use with his drone team for some time. Joe has led the development of a series of munitions of varying sizes. These range from small 450g bombs up to 3.5kgs which are dropped from a range of drones, small Mavic-type drones up to the ‘Baba Yaga’ heavy bomber drones.

This short video from Joe just goes to illustrate the importance of 3D printing in the development and manufacture of drone dropped munitions. The 3D printed casings are loaded with explosives and shrapnel which can then be fuzed ready for deployment in the field. The 3D printed designs have only grown more sophisticated, evolving originally from printed trail sections and nose cones.

3D printed drone munition casings with tail assemblies (via Joe MacDonald)

Importantly, the use of 3D printing allows for the casings and tails to be standardised and consistent. The 3.5kg V3 takes up to 24 hours to print, they could be printed faster but Joe explained that this sacrifices rigidity and robustness and he prefers the munitions his unit uses to be soldier-proof and capable of standing up to handling. Joe also noted that packing the casings with plastic explosive takes force which the cases have to be able to stand up to. While there are plenty of other case and tail designs in use the designs Joe led the refinement and development have been used by numerous Ukrainian brigades.

Special thanks to Joe for sharing the video and taking the time to explain how drone munitions are assembled, I highly recommend checking out Joe’s channel, Big Mac’s Battle Blogs, he regularly shares some really interesting insights.


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Anti-Tank Mines Used As Satchel Charges

In recent weeks there have been a spate videos showing Russian troops using TM-62 anti-tank mines as improvised satchel charges. We’ve already seen TM-62s used as drone dropped munitions and as demolition charges. The videos shared most recently show the dramatic effect that the TM-62s can have on structures. But they aren’t the first videos of the mines being used in this way to emerge from the conflict.

Back in April 2023, overwatch drone footage was shared which showed a Ukrainian soldier using a satchel charge, which appears to be a TM-62, to destroy a Russian fighting position. The charge detonates about 10 seconds after it’s tossed into the position. Almost a year later in early March 2024, another piece of drone footage showed troops from the 2nd mechanised battalion of the 30th mechanised brigade destroying what appears to be the entrance to a cellar near Syn’kivka, in Kharkiv Oblast, with a TM-62 satchel charge.

A Russian soldier posts a TM-62 through a window (via social media)

Several days later another video showed a member of the 81st Airmobile Brigade using a TM-62 to destroy Russian dugouts near Bilohorivka. In the video a Ukrainian serviceman can be seen lighting a length of safety fuze which appears to be taped to the body of the mine. He then throws the mine into a hole in the roof of a dugout and takes cover – approximately 20 seconds later it detonates. Several grenades are thrown into the dugout and another mine is brought up, we can see the mine is being carried by its attachable webbing carrying handle. The safety fuze on the mine is lit and thrown into a covered section of trench and detonated approximately 22 seconds later.

On 12 April, the 109th Territorial Defense Brigade shared video of urban operations in which Ukrainian troops, with covering fire from HMMWVs, used satchel charges to destroy several buildings. The drone footage of the operation isn’t clear enough to make out if the satchel charges used are TM-62 based but the charges clearly have a significant blast effect.

Depending on the variant TM-62s mine are packed with 7.5kg (17lbs) of explosive and is normally centrally fuzed by a mechanical MVCh-62 pressure fuze. It is a High-Explosive Blast (HE-Blast) mine typically with a TNT filling. While extremely potent they aren’t designed to be thrown, weighing 9.5–10kg (20-22lbs). 

A Ukrainian soldier lights a safety fuze to ignite a TM-62 (via social media)

While in some videos its clear that some sort of cord fuze was used to initiate the mine in some of the more recent footage it appears that grenade fuzes may have been used. This gives the user very little time to escape the blast radius.

On 2 July, a Russian telegram channel shared the first of several videos of Russian troops using TM-62s to clear positions. The location of the video isn’t stated but it shows Russian soldiers tossing a pair of what appear to be a TM-62Ps (which have a red-orange Bakelite case). Two days later another drone video showed [better quality version] a Russian soldier run up to a building and throw a TM-62 through a ground floor window, he runs clear but the mine detonates just three seconds later. It’s unclear from the video when he initiated the fuze, likely before approaching the building. The charge effectively collapses the corner of the two storey structure’s outer wall.

A TM-62 satchel charge destroys the corner of a building (via social media)

Russia telegram channel WarGonzo shared another video on 5 July, reportedly filmed in Niu-York, Ukraine, showing a member of the 9th Separate Guards Motor Rifle Brigade using a TM-62 to destroy a building which was said to have been occupied by Ukrainian troops. The Russian soldier can be seen pulling a pin on what may be a grenade fuze just before throwing the mine through a window. The mine detonates just three seconds later completely destroying the small building.

Another spectacular video was shared on around 7 July, showing two Russian soldiers deploying a pair of TM-62s against a large building, the location of which isn’t stated. They are seen approaching the building, pulling fuze pins and tossing the mines in. As they turn and run the mines detonate just three seconds later demolishing the building.

While in most of these videos the men deploying the mines appear to get clear they do beg the age old question of whether some of the soldiers deploying the mines are inevitably ‘hoist by their own petards’ – the etymology of that phrase being a reference the the dangerous business of 16th century sappers being killed or injured while deploying Petards, a historic equivalent to a modern demolition or satchel charge.

16th century engineer deploying a petard (via Library of Congress)

It’s clear from the available imagery that both Russia and Ukraine have utilised TM-62s as ad-hoc satchel or demolition charges since at least early 2023 (and likely earlier). It’s unclear how widespread of a practice the use of the mines is but it is clearly highly effective and while it puts the user deploying the mine at significant risk it appears an effective way of clearing enemy positions if the charge can be delivered successfully.

Update – 30/09/24: Footage of what may be an assault demolition, of an apartment block in Toretsk, using TM-62s.

Update – 21/10/24: A member of Ukraine’s Russian Volunteer Corps employs a TM-62 satchel charge during fighting in Vovchansk.

Update – 5/12/24:

Omega Team, an SOF unit with Ukraine’s National Guard, employ multiple TM-62s during a hit and run raid on a Russian strong point in an apartment block.

Update – 12/12/24:

An recent video of Ukrainian combatants using multiple TM-62 (or similar) anti-armour mines (минированию) as satchel charges in Toretsk was shared. The video shows half a dozen charges comprised of a pair of mines taped together with a delay fuze. These charges are thrown into the ground floor of a damaged building.


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Ukraine Captures First Turtle Tank

Since my last article/video on Russia’s ‘turtle tanks’ the adapted vehicles have continued to be used on several fronts but on Monday, 17 June Ukrainian forces captured their first turtle tank intact.

Known by numerous names by both sides including ‘Blyatmobiles’ (Блятьмобиль) and ‘assault garages’ (штурмовые гаражи), ‘Tsar Mangals’ (Царь мангал) or simply ‘sheds’ (сарай) the tanks are characterised by them being equipped with large counter-FPV shells made from readily available sheet metal (and other non-standard materials) and are sometimes equipped with electronic warfare jammers to provide additional protection against drones and sometimes with mine clearing devices such a mine rollers or ploughs. They appear to have been developed to provide improvised breaching vehicles capable of penetrating Ukrainian minefields, withstand drone attacks and in some cases deliver troops to an objective.

Front of the Turtle Tank captured in the field (via ArmyInform)

From posts on Ukrainian social media the tank was reportedly captured by troops from the 22nd Separate Mechanised Brigade but the vehicle was first encountered near Klishchiivka by soldiers of the 244th battalion of the 112th Territorial Defense Brigade that had been seconded to the 5th Assault Brigade.

The turtle tank allegedly became lost in the Klishchiivka area and saw an M113 APC belonging to the 2nd Battalion of the 5th Assault Brigade and began following it. When the M113 crew spotted the enemy tank it attempted to hide. The tank, however, continued to follow and on reaching the M113 a member of the turtle tank’s crew said to be the driver got out to ask for directions. He was captured by medics of the 244th Battalion. From the footage available it appears that the following morning troops of the 22nd Separate Mechanised Brigade approached the tank and captured an undisclosed number of Russian troops who were travelling in the rear of the turtle tank’s counter-FPV shell. Despite numerous sources and accounts the timeline of the tank’s capture remains somewhat unclear.

The immobilised Turtle Tank captured in the field (via 22nd Separate Mechanised Brigade)

Subsequently released footage from a 22nd Mechanised Brigade drone appears to show the Turtle Tank being damaged by a drone dropped munition before it was captured. The post with the video claimed that the turtle tank’s crew became disorientated after the drone attack and mistakenly drove towards Ukrainian lines. Lt. Colonel Serhiy Misyura, of ArmyInform, also noted that the vehicle was struck by an FPV. Lt.Col. Misyura claims that the drone dropped munition detonated next to one of the tank’s road wheels and immobilised it. After it was captured Ukrainian troops were able to get the tank moving again and drive it to the rear.

Drone footage then shows the capture of the tank’s crew and the vehicle moving off towards the Ukrainian rear. Teoyaomiquu shared a short clip filmed by a member of the 93rd Mechanized Brigade which showed the captured tank passing by, the 22nd Mechanised Brigade’s flag can be seen flying from the top of the tank. In a photograph of the tank and some of the men who captured it the same flag can be seen. Another piece of footage showing the tank close up also appeared online on the 18th June. The video shows the front, rear and left side of the tank’s counter-FPV shell.

Right side of the captured Turtle Tank (via ArmyInform)

On the 19th June, the 112th Territorial Defense Brigade shared a short video showing the confused captured tank driver sat in the rear of an M113. On the 20th June, ArmyInform, the Ukrainian Armed Forces’ news outlet published a video on their YouTube channel giving us an up close look at the captured tank in detail during which Lt. Colonel Misyura describes it as a ‘marvel of modern Russian engineering’.

The Ukrainian Army were quick to capitalise on the propaganda value of finally capturing one of the Tsar Mangal (Tsar’s Barbaque) / assault sheds in tact, at the time of publication the video has over 650,000 views on YouTube alone.

Examining The Turtle

Since late April we have seen many variations on the ‘turtle tank’ theme, this example is certainly one of the least refined. Firstly, the tank does not appear to have been equipped with mine clearing kit as some of the other tanks have. However, it has been outfitted with what appear to be some sort of EW jammer to counter drones. Additionally, we can clearly see several UDSh smoke generators, held in a pair of brackets on either side of the shell. These have sometimes been misidentified as standard TM-62 anti-tank mines but the UDSh is a smoke generator which mimics the mine’s shape for training purposes. In this case they have been repurposed to enable the tank to create a mobile smoke screen. According to CAT-UXO the UDSh can be initiated electronically or manually and once ignited discharges smoke for 8-10 minutes. In the ArmyInform video it is also noted that the Kontakt ERA blocks seen on the tank’s glacis are empty.

Ukrainian troops pose in fron of the captured Turtle Tank (via social media)

The tank itself is a T-62M and according to Ukrainian sources the turret is fixed in place and the tank carried no ammunition for its main gun, making it largely defenceless in isolation from supporting elements. The counter-FPV shell is crudely assembled made up of a mish-mash of materials including metal sheeting which ranges from rusted bare metal to various worn paint colours, wire fencing and metal caging. There also appears to be rubber matting attached front and rear to help keep dust down. The top of the shell over the tank’s engine deck appears incomplete and may have been damaged. In the ArmyInform video which shows the area in-detail it is clear that the counter-FPV shell’s support struts were welded directly to the top of the hull and a number of large and small shrapnel holes in the shell are visible.

Top of the captured Turtle Tank (via ArmyInform)

It appears that between when the vehicle was captured and when the ArmyInform video was filmed the Ukrainian have removed the assemblies, which may have been EW jammers, on the front of the tank. Its unclear how long the adapted tank has been in service but their is evidence of past repairs and there are numerous spray painted slogans on its panels including ‘god is with us’, ‘Hero-Z’ and ‘154 RUS’ (a possible joke reference to Russian vehicle registration plates). If this is the case it might hint at the origins of the Russian crew. ‘154’ is a registration code for the Novosibirsk Oblast which is the home of the 41st Combined Arms Army. In one clip of the tank it also has what appears to be a stolen ‘1941’ sign (possibly from a Great Patriotic War memorial) attached to the rear of its shell.

Check out our previous article/videos on the turtle tanks here.


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TAB Reference Collection: M203 and Swedish K Manuals

A quick look at a couple of recent additions to the TAB Reference Collection: a 1979 dated Colt M203 grenade launcher manual and a 1959 dated Irish Defence Force manual for the Carl Gustaf m/45 submachine gun!

The small Colt M203 manual covers everything you need to know about how to operate and maintain your 40mm grenade launcher. The booklet measures just 5 inches by 3.5 inches.

I’ve recently aimed to expand the TAB Reference Collection into Irish Defence Force material, this 1959 manual for the m/45 Carl Gustaf submachine gun joins an Irish manual for the FN FAL I acquired last year.

More videos on items from the TAB Reference Collection here


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Chinese Type 69 RPGs in Ukraine

There are a number of different RPG-7 pattern rocket launchers in use in Ukraine including the American PSLR-1s, the Czech LGL-7s and the Bulgarian ATGL-L and WRPG-7 to name a few. One of the most interesting to appear is the Chinese Type 69.

The Type 69s were potentially supplied by one of the Baltic states, Latvia, Lithuania or Estonia, which held them in inventory during the 1990s and 2000s. The Type 69 was in service it the Estonian armed forces as the M-69, and remained in inventory into the early 2010s. Another possible origin is that they were part of a seized shipment of small arms and light weapons supplied to the Houthis in Yemen by Iran, which was intercepted en route. Though no Type 69s have been seen in the released imagery of seized shipments.

Training with Type 69 (via 22nd Separate Mechanised Brigade)

The Type 69 is a clone of the Russian RPG-7, manufactured by China’s state arsenals it has been successfully sold around the would by NORINCO and Xinshidai. It entered service with the Chinese People’s Liberation Army in the 1972, replacing the earlier Type 56, and served into the late 1990s.

The Chinese RPG’s distinguishing features include the absence of a rear pistol grip, an orangey-brown fluted heat-shield around the tube, a forward bipod, and a folding carrying handle fitted to the top of the launcher. There is also a fold‐down shoulder support which is removeable. The Type 69-1, introduced in the 1980s, is slightly shorter than the original Type 69 and has slightly different sights, with the rear sight assembly more centrally positioned on the tube. The Chinese RPGs seen in theatre so far appear to be Type 69-1s.

Two Type 69s in a Ukrainian armoury (via social media)

The earliest evidence of Type 69s in Ukraine I’ve come across is a video posted by the Ukrainian YouTube channel Tacti Coach on 29 November 2023 which discusses RPG-7s in general but features a Type 69. Subsequently, on 19 January 2024, the 22nd Separate Mechanised Brigade shared several photos of troops training with Type 69s.

Another undated photograph shows the interior of a Ukrainian armoury, with crates of ammunition and transit chests with a Barrett M107 and two Type 69s.

Training with Type 69 (via 22nd Separate Mechanised Brigade)

On 21 January, a Ukrainian combatant believed to be associated to Ukraine’s special operations forces shared a photograph holding a Type 69 by its carry handle. On the 18 February, the 22nd Separate Mechanised Brigade again shared an album of photos showing troops training with the Type 69 giving us the best look at the Chinese RPG in Ukraine so far.

In future articles/videos we’ll look at other RPG-7 variants in use in Ukraine. We have previously examined a number of RPG-7 related topics, mostly focused on improvised warheads.

Thanks to B-AREV and to Weapons Illustrated for their help sourcing imagery.


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FAMAS In Ukraine

In September 2023, a video was shared which appeared to show a French FAMAS rife in Ukraine. The video featured a select-fire FAMAS being fired at a range by a member of the Ukrainian armed forces. This video raised the question ‘has France provided FAMAS to Ukraine?’ It certainly would not be a surprise if France had provided the rifles. Since the adoption of the HK416F in 2016, France has since provided surplus FAMAS to several friendly nations including Suriname.

The FAMAS has been the French military’s primary service rifle since its introduction in 1979. Developed at the Manufacture d’Armes de Saint-Étienne (MAS), it uses a lever-delayed blowback action and was one of the first bullpup rifles adopted by a major military. It will continue in French service to at least 2028 as it is replaced by the HK416F.

The video was posted on TikTok on 13 September, the rifle featured was a FAMAS F1 with the Valorisé upgrade, which adds Picatinny mounting rails. The video, filmed at a range, features a combatant who has lost his left hand and appears to have a rank slide indicating he’s a captain.

It wasn’t until 14 December, that there was another sighting of FAMAS in theatre. A member of the 54th Separate Reconnaissance Battalion (ORB)’s mortar platoon shared a photograph of himself with FAMAS F1 Valorisé. The photograph also featured an issue of six FAMAS magazines and a blank ammunition magazine for use firing some types of rifle grenades.

A photo of the FAMAS as issued to Ukrainian forces, via member of 54th Separate Reconnaissance Battalion (via social media)

Speaking to the combatant about the FAMAS he explained why he likes the rifle saying that he finds it light, comfortable, easy to aim and appreciates the three round burst function as it prevents unintentionally dumping the whole mag in stressful situations. He, however, dislikes the limited size of the rifle’s 25 round magazine and that it only takes proprietary FAMAS magazines making it impossible to gather magazines from other combatants during combat. The rifles were also issued without user manuals but he has since found a PDF copy. When I spoke to him he noted that two out of his six man unit were currently using the FAMAS, he was given the option to choose a rifle from his unit’s armoury and said others favoured the AK or Ukrainian Malyuk/Vulcan bullpup.

Some Ukrainian troops will be familiar with the FAMAS if they completed training in France. Numerous photos and videos show Ukrainian troops using the French rifles while training. France planned to train as many as 7,000 Ukrainian troops in 2023.

Table published by the French government showing weapons and kit transferred to Ukraine, including FAMAS rifles (French Govt.)

In December 2023, the French Assemblée Nationale published a document which outlined the equipment, but not quantities, provided to Ukraine by France. Originally written in March 2023, it was discussed by the Committee on National Defense and the Armed Forces in early November 2023. It confirms the provision of both FAMAS, various calibres of machine gun and precision rifles.

The member of the 54th Separate Reconnaissance Battalion continued to use his FAMAS in the field sharing numerous photographs with it between January and May 2024. He has removed the rifle’s integrated bipod legs and mounted a Holosun 510 series reflex sight.

A FAMAS captured by Russian forces (via social media)

Intriguingly, on 25 January 2024, a Russian telegram channel shared photographs of a captured FAMAS F1 with the Valorisé upgrade kit. The rifle is seen fitted with an Aimpoint CompM5. The post gave no further information on where or when the rifle was captured.

On the 1 February a member of Ukraine’s 128th Mountain Assault Brigade shared a photograph of himself and another combatant holding an F1 Valorise equipped with an ACOG. The same rifle appeared in a short range video posted a week later. The rifle has its integrated bipod deployed and is being firing in the fully automatic mode. The combatant does not appear to be using the rifle in the field.

A member of the Ukrainian armed forces with FAMAS, c.March 2024 (via social media)

On 7 March, a member of the 67th Mechanised Brigade shared a photograph of a combatant, described as a member of ‘the intelligence battalions’, holding a FAMAS. While a member of the 71st Jaeger Brigade shared several photographs of himself equipped with a FAMAS, sharing the first at the end of March and the second in early April.

On 4 March, the French government released an updated document listing the types and quantities of some of the equipment provided to Ukraine. The document states that 1,000 ‘FAMAS’ have been provided between 1 March, 2022 and 1 May, 2024.

A table from a French government report on aid to Ukraine stating 1,000 FAMAS had been provided (French Govt.)

While the issue of the rifle only being able to use steel cased ammunition is largely a myth, the original F1 does have a 1 in 12 twist rate barrel meaning that it is optimised for 55gr M193-type 5.56x45mm ammunition rather than 62gr SS109 or M855. Sources suggest the F1 Valorisé has a new 1 in 9 barrel which if true would enable it to use ammunition with heavier projectiles with no issues. It seems the only limiting factor on the F1’s in Ukraine is the weapon’s use of a proprietary 25-round magazine rather from a NATO standard 30-round magazine. As such combatants in Ukraine who find themselves with a F1 Valorisé will be confined to using magazines issued with the weapon. In a hostile environment where STANAG pattern magazines are most prevalent 5.56x45mm magazines this is a significant logistical drawback.

As the number of FAMAS provided is relatively small sightings of the French rifles in theatre are relatively rare. Despite this from the limited sample we have available the rifle appears to be in the inventory of at least two or three brigades. It appears likely that they aren’t being issued to entire units and instead they are currently held by unit armouries where individuals can select them. In terms of other small arms provided by France; in the past French 7.62x51mm AANF1 and FN MAG machine guns were provided with armoured vehicles and most recently FR F2 sniper rifles have also surfaced in Ukraine.

Update – 18/6/24:

Update – 31/7/24: On 25 July, the 120 separate battalion of the Ukrainian Territorial Defence Force (attached to the the 113 TDF brigade) shared an album of photographs featuring volunteer troops with theДФТГ / ‘DFTG’ (a Voluntary Territorial Community Formation). Featured in the album were a number of personnel equipped with F1 Valorise rifles. (H/t to Weapons Illustrated)

Update – 14/08/24: A photograph of two Ukrainian combatants, posted on Tiktok on 6 August, featured a pair of FAMAS. (H/t to Weapons Illustrated)

Special thanks to Weapons Illustrated for his help sourcing imagery and also to Dragonists Society.


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Call For Questions: 100,000 Subscriber Q&A!

Super thrilled to have passed the 100,000 subscriber mark over on YouTube!

The channel has been around since 2017 and has taken me to some incredible places and given me the chance to examine some amazing weapons everything from Ferguson rifles to the HK G11! Very grateful to everyone who has watched my videos over the years. Starting off on shaky ground stumbling over pieces to camera to disassembling and examining one of a kind John Browning prototypes and everything in between!

You may have found me through my videos on the war in Ukraine. While never something I thought I’d be covering in real-time I hope they’ll provide a useful resource in years to come. I can only hope it’s a series of videos that ends soon. I really appreciate everyone who has watched my work, commented and shared the videos. Massive thank you to past & present supporters on Patreon they have hoped me justify spending so much time on making videos!

Thank you also to friends and colleagues who have helped with research and been supportive over the years. Working on historical and contemporary firearms content has led me to becoming friends with some incredible historians, researchers and video creators which have really enriched my life. So, all in all, reaching 100,000 subscribers may seem insignificant compared to some of the huge YouTube channels out there but when you’re a fairly quiet British fella who likes firearms and history it’s wonderful to be able to share the passion with so many others each week. Thank you.

I thought I’d celebrate by doing a question and answer / ask me anything. So ask me anything! Firearms history, my background, favourite colour, questions about my videos on Ukraine, and I’ll try to answer as many as I can in a video or live stream! Leave questions in the video’s comments or email them here.

Hands On: The UK’s L403A1 / Knights Armament KS-1

In September 2023, the United Kingdom has announced the selection of the Knight’s Armament Company KS-1 as the new individual weapon for the Ranger battalions and the Royal Marines Commandos. Back in January, while attending SHOT Show 2024, I was able to get a first hands on look at the new rifle which has been designated the L403A1. The requirement for the new rifle was released back in August 2021, as part of Project Hunter, and called for the “procurement and support of an Armalite Rifle (AR) platform Alternative Individual Weapon (AIW) System.”

Alternative Individual Weapon (AIW) System comprises the weapon and a ‘Signature Reduction System’ [suppressor] and an ‘Optic System’. The AIW replaces the SA80/L85 series of rifles and Colt Canada L119s in service with the Rangers and elements of the Royal Marines Commandos. After two years of competition the UK MoD announced that Knight’s KS-1 has been selected as the L403A1, beating off reported competition from Heckler & Koch’s HK416A5, SIG Sauer’s SPEAR-LT, Daniel Defense’s M4 and Glock’s new GR-115F.

The rifles will be procured via UK-based company Edgar Brothers and the £90 million ($110 million) contract will see up to 10,000 new rifles delivered over the next decade. An initial £15 million order for 1,620 AIW systems was placed with the first rifles delivered before the end of 2023. 

Anatomy of the L403A1 (Edgar Brothers)

The system is built around the Knight’s Armament Company KS-1 (SR-16) and includes the Knight’s QDC/MCQ-PRT suppressor, a magnified 1-10 LPVO optic from Vortex and an Aimpoint ACRO P-2 red dot, however, the rifle we examined had a Leupold DeltaPoint Pro mounted in its place. The rifle I had the chance to examine was in the configuration of L403A1 but did not have any markings unique to the British rifles which will likely have an ‘L number’ marking on the magazine well. On its left-side the rifle has ‘5.56mm KS-1’ on its upper receiver and bellow it on the lower receiver’s magazine well ‘STONER RIFLE [KAC’s roll mark] and [the weapon’s serial number]’. On the right side the magazine well is marked ‘SR-16 5.56mm, KNIGHT’s ARMAMENT CO. TITUSVILLE, FL, USA’. The weapon has the Knight’s URX-6 ML OK handguard.

The KS-1 is the latest iteration of the SR-16 series, it has a 13.7in (35cm) barrel, which if you look closely you can see is dimple cut to reduce weight. The rifle unloaded weighs in at 6.88lbs (3.1kg) and its overall length is 32.2in (82cm) with the stock collapsed and 34.2in (87cm) extended. The QDC/MCQ-PRT weighs an additional 13.9oz and adds just over 2 inches to the weapon’s length. The rifle uses a direct gas impingement system (or more correctly described as Stoner’s internal piston system). The rifle examined at SHOT Show was fitted with a Magpul SL-K Carbine Stock rather than the Magpul CTR which will equip the AIW. Similarly, it was equipped with Knight’s own Folding Micro Rear Sight rather than the Magpul MBUS Pro folding iron sights which the L403’s will be issued with.

The UK MoD required the rifle to have a removable trigger guard for cold weather use as the RM Commandos in particular regularly operate in cold weather environments, so Knight’s also designed a reinforced trigger guard, with a spring detent, that is more robust.

In terms of ergonomics and handling you can’t learn too much from handling an unloaded rifle for about 5 minutes but it felt fairly well balanced and had standard AR-15 type controls – including ambidextrous magazine and bolt releases. It had some heft to it (even unloaded) weighing approximately 4.3kg or 9.5lbs (after doing some maths adding up the stated weights for all of the AIW’s components: optics, suppressor, weapon). Which while heavier than a stock M4A1 it is lighter than an L85A2 and A3.

Special thanks to Knight’s Armament Company for allowing me to take a look at the rifle.

Check out our earlier article/videos looking at the AIW L403 here


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Ukraine’s Grad Rocket-Armed Sea Drones

Ukraine’s family of unmanned surface vessels (USVs) continues to grow as the Security Service of Ukraine (SBU) have developed a Grad rocket-armed Sea Baby drone. The one-way or kamikaze USVs deployed by Ukraine in the Black Sea have been instrumental in engaging the Russian Navy, however, more recently new variants have emerged as Russia has begun to adapt and successfully engage the Sea Babies which in turn has seen the Ukrainians seek to adapt.

The first video of the rocket-armed USV in action recently emerged and the SBU has released some photographs which appear to show the drone in testing. On 22 May, an anonymous SBU source told The Kyiv Independent that the new drones have been used in combat “against Russian positions on the Kinburn spit,” a stretch of often fought over land on the coast near Mykolaiv. “This technological solution is already showing powerful results,” with the source adding “Our Sea Baby is not just a drone, but a multifunctional platform that is constantly being improved.” So far it seems the rocket-armed USV has been used against shore targets rather than to engage the Russian Black Sea Fleet, firing on a moving target from an unstable platform may be much more of a challenge. It remains to be seen if this USV variant has been put to use engaging vessels at sea. The Grad Sea Baby gives the SBU the useful ability to strike shore targets anywhere along the Russian-occupied Black Sea coast. From available imagery, at least three of the rocket-armed variants have been built.

The drones have been equipped with six 122mm Grad rocket launch tubes. The BM-21 multiple rocket launch system is used by both Ukraine and Russia. It’s size, ubiquity and relative cheapness makes it an obvious choice for mounting on the six meter long Sea Baby. The latest versions of the Sea Baby are reportedly able to carry 400 kg warheads over 500 miles at speeds of up to 48 knots.

The Grad rockets have a range of anywhere between 20 and 50 km depending on the type of rocket used. It’s unclear if a sea-based launch impacts the rocket’s range or accuracy but depending on sea conditions dispersion of the munitions is almost certainly affected. While accuracy may be impacted the rockets still give the Sea Baby a useful stand off capability, allowing the USVs to engage targets at a distance rather than having to make it physically all the way to the target to detonate its payload. How the rockets are aimed or the launcher is zeroed isn’t yet clear. The tubes do not appear to be adjustable for elevation as photos appear to show them fixed in place at a slight angle. Available photos show the launcher being tested ashore at a range, perhaps the tubes are bore sighted.

This isn’t the first time rockets have been fired from a Ukrainian USV, back in January 2024, footage of a USV firing smaller rockets at a Russian patrol vessel emerged. The rockets are believed to be RPV-16 or RPO-A thermobaric rockets. Some of this footage, along with other older video, was included in a short clip which showed off the rocket-armed Sea Babies. While this footage may not show a Grad launch Vasyl Malyuk, head of the SBU, has said during a press event with UNITED24, that “For the first time, the SBU used the “Sea baby” drone, equipped with the “Grad” rocket salvo fire systems, in December 2023,” adding that this represented a “new milestone in the history of sea battles.” Newsweek reported that the Sea Babies fitted with Grad launchers were paid for using United24 donations, with each USV estimated to be worth $221,000.

Most recently we also saw another curious Ukrainian USV emerge, equipped with an improvised air-defense system with two repurposed AA-11 ARCHER (R-73) air to air missiles. The air defense USV emerged as Russian helicopters began to effectively engage the Ukrainian USVs. Given the rapid evolution of Ukraine’s USVs it would not be surprising to eventually see one equipped with an anti-ship missile, such as a small RBS-17.

Sea Baby equipped with six Grad tubes (via SBU)

The small cross section and speed of the Sea Baby drones allow them to infiltrate and approach Russian Black Sea vessels both at sea and in port. However, Russia has developed rudimentary tactics for successfully engaging them either with helicopters or with small arms and other defensive fire from vessels. A stand off capability, be it a USV equipped with unguided Grad rockets or an anti-ship missile, adds another dimension the Russians will have to adapt to. The Grad-armed Sea Baby is the latest indicator that Ukraine’s USV fleet is continuing to diversify to meet new threats and operational requirements.

An earlier version of this article first appeared at OvertDefense.com.


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Russian Anti-Drone GP25 Adaptor

Drones have come to define the war in Ukraine with both sides making prolific use of the them for observation and ordnance delivery. Both sides have struggled to find adequate countermeasures for the drone threat with everything from fishing nets to anti-drone guns and from cope cages to complex electronic warfare jammers to disrupt UAV frequencies over larger areas.

The threat to individual soldiers has become increasingly serious with many units resorting to pressing sporting shotguns into service. However, not every combatant can carry a shotgun and a number of companies, engineers and fabricators have turned their attention to providing soldiers with a cheap, mass manufacturable, and effective weapon which can be issued to individual soldiers en masse.

Loading the adapter into a GP-25 (via Ingra)

In this article/video we’ll look at one of these efforts from a Russian company Ingra (ИНГРА). Ingra have developed an adaptor that converts a GP-25, 40mm under barrel grenade launcher, into a single-shot 12ga shotgun. On 13 April, Ingra announced [machine translated]:

Friends, the INGRA company has created a new, unparalleled device ROSYANKA [Sundew] for the destruction of quadrocopters. The testing stage has been completed. ROSYANKA changes the caliber of the underbarrel grenade launcher to fire a 12-gauge hunting cartridge with an effective range of 15-30 meters. The tests carried out showed the reliability, safety and efficiency of the device. We have reached the next stage, which is the production of a pre-production batch for testing by the troops. Our task is to fill the troops with the ROSYANKA product in a short time.

Later the same day they shared their first videos demonstrating the adaptor in action. In the first video the adaptor is shown being loaded with a 12ga cartridge and then inserted into a GP-25, just as a grenade would be. A second short video shows the adapter being used to shoot down a commercial quadcopter drone.

A Rosyanka 12ga adapter and pouch (via Ingra)

On their telegram channel the company posted a pair of photographs showing targets shot with an adapter at 30 metres. They claim 5mm of penetration but do not mention the length of the adapter’s barrel. From one of the photographs Ingra shared it appears that the ROSYANKA was developed in three barrel lengths, estimated to range between 2 and 5 inches in length.

On around the 5 May, the company released a slicker video demonstrating the adapter. The design appears simple, it has interfaces that allow it to be loaded and held in the GP-25s barrel which align the cartridge, which is loaded into the adaptor’s breech, with the GP-25’s firing pin. To unload the adaptor it has to be released from the launcher by depressing the grenade release catch, then the spent case needs to be extracted from the adaptor and a new cartridge loaded. The video also shows that a rear sight adapter is fitted to aid aiming the weapon.

On the 10 May I spoke to one of the company’s representatives, before the adaptor had been launched on company’s website, he explained that would be available soon and that it would cost around 12,000 rubles ($130). On the 14 May, the adaptor was launched on Ingra’s website at a lower than expected cost of 9,300 Rubles or US$102. The adapter is currently listed as unavailable on Ingra’s website but posts on the company’s social media urge interested parties to contact them directly to order.

Firing on a commercial quadcopter drone during a range demonstration (via Ingra)

In a video, shared on the 13 May, Ingra demonstrated the operation of the adaptor and also noted that it is compatible with GP-25, GP-30 and GP-34 pattern grenade launchers. Ingra’s website provides some specifications and confirms that the adapter is only available in one barrel length, of the three previously shown. The adapter is 250mm/9.8in long and weighs in at 340g/12oz. The manufacturer states is has an effective range of between 15 and 35 metres (50-115 feet) against a target with a 500mm/19.6in cross section. The adaptor can be used with 2 3/4 and 3in loads and has a warranty for up to 100 rounds of the Siberia 32g No.3 12ga which is Ingra;s recommend load. The adaptor comes with instructions, a rear sight adapter and a small pouch.

On the 16 May, Ingra shared another range video featuring a Russian combatant trying out the Rosyanka adaptor against floating balloons. The adaptor is being used in a GP-25 mounted on an AKMS with a PBS-1 suppressor. The combatant testing the adaptor notes [his comments were machine translated] the importance of seating the cartridge fully in the breech and keeping your hands clear of the muzzle in case of accidental discharge. He suggests having the GP-25 on safe to avoid an accidental discharge, hinting that one may have occurred earlier. He also demonstrates using a rod to push the spent cartridge case out of the adaptor’s breech.

Now that the adaptors are available it remains to be seen if we and when we’ll see them in use in the field with Russian troops. The system is clearly well thought out, simple to manufacture and potentially fairly effective at under 40 metres. It adapts a readily available infantry weapon to a pressing new role and may also have some close quarter anti-personnel applications.

It undoubtedly provides the operator with a means of engaging a drone but it also has drawbacks. The reloading process is comparatively slow meaning that the user is likely to only have one chance to engage a drone if it is one of the faster FPV drones and is unlikely to otherwise match a conventional shotgun in terms of reload times when engaging drones engaged in munitions dropping or observation. It also means the grenadier has to choose what to have loaded ready in his GP-25 in various situations. The limited availability of underbarrel grenade launchers also means that, depending on the unit, only one soldier per squad will have the ability to use the adaptor.

Update – 20/06/24:

A Russian telegram channel posted several photos of a damaged adaptor, stating [machine translated]:

“The first test was not successful; during the first shot, the skirt of the cartridge was torn off (it remained in the GP25, the barrel itself jumped out of the GP and flew away 30 meters.”

It may be that the user loaded the adapter with a cartridge not recommended by the manufacturer.

Update – 11/7/24: Photographs of a production ROSYANKA disassembled showing the threads which allows the barrel piece to screw into the wider breech section.

Update – 27/4/25:


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