Does the L403A1 Mount a Bayonet?

In a recent article/video we looked at the UK’s newly selected Alternative Individual Weapon system, the L403A1. The Knight’s Armament KS-1 was selected as the new rifle for the Ranger Regiments of the Army Special Operations Brigade and for elements of the Royal Marines Commandos.

One question which frequently appeared in the comments was “can it fit a bayonet?” This is a good question because the British Army is known to be a proponent of bayonet use with a long history of using it to great effect from the 1600s right through to recent conflicts in Iraq and Afghanistan.

Surveillance and Reconnaissance Squadron member with new L403A1 (Royal Marines Commandos)

The short answer to the question is – yes. The longer answer is a bit more complex. Just a week after the selection of the new rifle was announced Knights Armament displayed one of the rifles with a bayonet fixed at the DSEI 2023 exposition in London. This naturally caught some attention.

L403A1/KS-1 with a bayonet seen as DSEI 2023 (via social media)

However, when the selection of the L403A1 was initially announced a breakdown of the Alternative Individual Weapon system’s accessories and ancillaries was released. This included: a Vortex 1-10x LVPO, an Aimpoint ACRO and a QDC/MCQ-PRT [Quick Detach Coupling/Mini Close Quarters–Pressure Reduction Technology] suppressor along with a sling, a vertical front grip, and a Surefire weapon light but noticeably it did not include a bayonet.

Breakdown of the parts and accessories adopted with the L403A1 (Edgar Brothers)

The ability to fix a bayonet was not part of the weapon’s original requirements and it was not stipulated by the Rangers or Commandos. Instead, Knight’s Armament developed the capability themselves, perhaps recognising the UK’s fondness for the bayonet and the British Army’s long history of its use as both a training aid and as a weapon of war.

KAC’s 1st bayonet design with QDC attachment mechanism (courtesy of Gregory Knowles)

TAB reached out to Knight’s Armament about the bayonet and they confirmed that “the bayonet was designed in anticipation of a potential need, though not required as part of the contract.” The bayonet seen fixed to the rifle at DSEI was apparently the first iteration of the design which according to Knight’s Armament “used the same mounting mechanism as the suppressors” but a new “revised design uses an attachment mechanism that is more similar to the SA-80 bayonet attachment/retention design.”

Essentially, rather than using the suppressor’s ‘Quick Detach Coupling’ system the newer iteration of the bayonet uses a pivoting catch. The quick-detach method used by the suppressor involves the suppressor being rolled one way until the index pin seats in a notch before tightening it by twisting it the other direction.

The new iteration of the bayonet fits over the rifle’s 3-prong QDC muzzle device and uses the same style of catch system as the SA80. Knight’s Armament explained that “the redesign was a refinement of an initial concept after some basic testing and feasibility evaluation.” The bayonet haven’t undergone any serious testing as they’re still in the development phase. A chromed version of the latest iteration of the bayonet was also displayed at DSEI and has a removable pommel piece that can act as a small storage space and makes the bayonet more comfortable for use as a knife.

The bayonet’s blade is offset to the left side with a corresponding hole which lines up with the muzzle.

While bayonets aren’t currently planned to be issued with the rifles, the requirement might develop once they enter service. If, in the future, the UK Ministry of Defence requested a bayonet for the new rifles it seems that Knight’s Armament could be able to oblige.

Project Hunter: The UK’s New Assault Rifle

The United Kingdom has announced the selection of the Knight’s Armament Company KS-1 as the new individual weapon for the new Ranger battalions and the Royal Marines Commandos. The requirement for the new rifle was released back in August 2021, and called for the “procurement and support of an Armalite Rifle (AR) platform Alternative Individual Weapon (AIW) System.”

The requirement called for a ‘Rifle System’ which comprises the weapon and a ‘Signature Reduction System’ [suppressor] and an ‘Optic System’. The rifle itself had to be ‘gas operated with a rotating, locking bolt’ and was to specifically have “a standard configuration, not bullpup, with the magwell in-front of the trigger housing.”

Royal Marines Commando with L403A1 (Royal Marines/Royal Navy)

The UK launched Project Hunter to select a new Alternative Individual Weapon (AIW) to replace 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 has announced that Knight’s KS-1 has been selected as the L403A1, beating off reported competition from Heckler & Koch, SIG Sauer, Daniel Defense and Glock.

Other weapons believed to have been evaluated include the HK416A5, the SIG Sauer SPEAR-LT, the Daniel Defense M4 and Glock’s GR-115F. Other companies believed to have submitted rifles include Colt Canada, Lantac, Haenel and Steyr amongst others.

The new rifles will supplement the L85A2 and L85A3 which currently equip the majority of the UK armed forces. 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 has been placed with the British Army fielding them with the Army Special Operations Brigade, with the brigade expected to receive the first rifles by the end of 2023. The Royal Marines’ ‘strike companies’ and Surveillance and Reconnaissance Squadron will also be among the first to receive the L403A1. The ‘Alternative Individual Weapon’ essentially fulfils the same role every AR-pattern rifle in UK service has since the 1960s.

New Alternative Individual Weapon – L403A1 (UK MoD)

The UK’s Minister for Defence Procurement, James Cartlidge said:

“This is another example of how we are committed to investing in the most advanced battlefield equipment to back our troops on the battlefield. This advanced rifle’s ability to help soldiers maintain the stealth edge not only protects them but delivers war-fighting advantage over our adversaries.”

Interestingly, the UK Ministry of Defence’s press release emphasises that as an AR-pattern rifle the L403A1 “shares much in common with the rifle systems used by many of the UK’s allies. Given their specialist role, and the critical task of working with and alongside many of the UK’s allies, the platform will enable ASOB to share skills and drills in an efficient manner.”

Close up of the Vortex and Aimpoint optics which make up part of the AIW package (Royal Marines/Royal Navy)

So what does the Alternative Individual Weapon (AIW) system include?

The system builds around the Knight’s KS-1 but also includes a magnified 1-10 LPVO optic from Vortex, an Aimpoint ACRO P-2 red dot and the Knight’s QDC/MCQ-PRT suppressor.  The prime contractor for the project, Edgar Brothers, are responsible for the sourcing and assembly of the AIW’s accessories. Accessories for the rifle will include a MAGPUL M54 sling, a Surefire Mini Scout Light Pro, G10 rail scales and a MAGPUL M-LOK AFG.

Anatomy of the L403A1 (Edgar Brothers)

The KS-1 is the latest iteration of the SR-16 series, it has a 13.7in (35cm) barrel and weighs 6.88lbs (3.1kg) unloaded, 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 selection of the new rifle forms part of the Royal Marines’ larger modernization push under the Commando Force Programme alongside a new helmet from Gentex and Fused Binocular Night Vision devices from L3Harris.

Surveillance and Reconnaissance Squadron member with L403A1 in Norway (Royal Marines/Royal Navy)

We got our first indication of the KS-1’s selection in June, when the Royal Marines published a new recruitment advert featuring the rifle. It was also subsequently seen during a demonstration at Lulworth Ranges in July.

While the British military have used AR-pattern rifles since the 1960s in various roles, Project Hunter and the Alternative Individual Weapon represents a major procurement and it remains to be seen how it will influence Project Grayburn – the effort to select a replacement for more than 150,000 SA80s.


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Bibliography:

Alternative Individual Weapon (AIW) System Tender Aug. 2021, UK Govt. (source)

£90 million contract equips Armed Forces with advanced new rifle, UK MoD (source)

Britain’s Commandos to get new assault rifles, Royal Navy (source)

Knight’s KS-1, Knight’s Armament Company, (source)

UK Selects New Assault Rifle, Overt Defense, (source) [This article is adapted from this original article]

M110 in Ukraine

Since around September 2022 there have been a small but steady stream of sightings of M110 Semi-Automatic Sniper Systems in use with combatants in Ukraine. The rifles began appearing on the southern Kherson front, before the city was recaptured.  While the Ukrainian 7.62x51mm UAR-10 designated marksman rifles are regularly seen intermittent sighting of M110s have continued. 

From the available evidence it appears that special operations units from the Ukrainian Security Service (the SBU), the Military Intelligence Directorate (GUR), the National guard and the Special Operations Forces (the SSO) are the primary users. Units operating with the rifles are believed to include Alpha Group and the 3rd and 8th Separate Special Forces Regiments, as well as a number of groups which, from the available imagery, have been difficult to link with parent units.

M110 with ATN THOR, taken during a range session, note butt extended (via Social Media)

Developed in the early 2000s by Knights Armament Company in response to the US Army’s requirement for a semi-automatic rifle to equip snipers, spotters and designated marksmen the M110 was adopted in 2008. Based on the SR-25, the 7.62x51mm rifle uses Stoner’s internal piston gas impingement system, and has a 20 inch barrel with a 1 in 11 twist. The rifle comes with a QD Knights suppressor and the initial issue optic was a Leupold 3.5–10× variable power daytime optic few of the rifles seen in use in Ukraine appear to be equipped with US issued optics. Both the US Army and USMC have issued the rifle with some variations in optics used and furniture.

A Ukrainian combatants I spoke to told me: “For a marksman, the top weapon. To work at short distances. The PBS system [meaning the integral suppressor] is standard in the kit. It is quiet compared to other rifles.” But he did note that he isn’t part of his unit’ s sniper group and has only used the rifle on the range. 

Three M110s with various optics, note suppressors not fitted, in their transit cases (via Social Media)

Most of the examples in Ukraine have the traditional fixed stock which was issued with the rifles, rather than the FDE Magpul PRS stock which is length and height which the USMC snipers have been issued. However, at least one rifle with a PRS has been seen in a photo and a least one rifle has been fitted with LUTH-AR MBA-1 stocks used on the Ukrainian UAR-10. Perhaps out of preference or replacing a damaged stock. In theatre the rifles have been seen paired with a variety of optics ranging from the original Leupold 3.5-10x variable scopes to ATN THOR 4 thermal optics and even a Trijicon 6×48 ACOG.

The earliest image of an M110 in Ukraine was shared on a Ukrainian telegram channel covering news around the city of Kherson in the early autumn of 2022. The original post is no longer available but shows a sniper in a ghillie suit unmistakably armed with an M110.

Early November saw Ukrainian operators share numerous photographs from a range session where the rifle can be seen fitted with an ATN THOR. December saw more photos shared of what is likely the same rifle, now equipped with a Trijicon 6×48 ACOG.

Two M110s photographed during a range session, one fitted with a LUTH-AR stock (via Social Media)

More photos of the same rifle fitted with the ATN THOR were posted by another operator in mid-November. Bravo Group shared a photo featuring an M110 in early December. Around the same time the F Spets instagram account shared a photo of a winter range session with an M110 visible. The same account shared a photo of three M110s in transit cases. Two of the rifles don’t have their suppressors fitted – though these may have been just removed for cleaning. The cases also show slings, various models of bipod an two have three mags apiece stored in one of the cases slots. As mentioned earlier one rifle has a PRS stock.

In late January a Ukrainian operator shared a montage video with a short clip of a range session with the M110 fitted with a 6×48 ACOG. A Japanese volunteer with the International Legion shared a photo of a scope-less M110 with his cat on 27 January. At the end of February an M110 with a LUTH-AR MBA-1 stock, possibly taken from a UAR-10 was shared. The same operator shared some new photos of M110s in March. The rifle with the LUTH-AR stock is seen again, in a photo with the logo of a group called ‘НЕПТУН’ (Neptune). In a second photo shared on 17 March we can see a pair of M110s, one without its suppressor fitted.

M110 with ATN THOR during a range session (via Social Media)

How many M110s are in use in Ukraine remains unclear but from a survey of the available imagery it appears that the number is relatively small. Multiple individuals have shared photographs of what appears to be the same rifles, not doubt because of its notoriety as a relatively rare weapon in theatre. Sources suggest that the rifles were available on a first come first serve basis when they arrived during the second half of 2022. Since they arrived they have been seen in various configurations and with numerous different optics mounted on them.

Update – 19/05/23: A new image of an M110 in the field was shared in mid-May.


Support Us: If you enjoyed this video and article please consider supporting our work here. We have some great perks available for Patreon Supporters – including early access to custom stickers and early access to videos! Thank you for your support!


Bibliography:

My thanks to the guys at the ShriekingDelilah instagram page and to Abraxas Spa, for their help with this article.

Ukrain Adopts New Semi-Automatic Sniper rifle: The UAR-10, TFB, (source)

M110 Semi-Automatic Sniper System, DVIDS, (source)