Developed in the late 1960s and introduced in 1969/70 the MPi 69 was Steyr’s entry into an already crowded European submachine gun market. Heavily influenced by the Israeli Uzi it had a bolt which telescoped over the barrel and fed from a box magazine that was inserted through a magazine well-come-pistol grip.
The MPi 69 weighed 6.5lbs (2.93kg) unloaded and had a polymer lower receiver into which a stamped metal upper inserted. Unlike the Uzi it had a collapsing, rather than folding stock, similar to the M3 submachine gun’s, and was cocked not by a handle but by pulling the sling (which was acted on the bolt) to the rear.
The MPi 69 remained in production into the early 1980s when it was replaced by the improved MPi 81. Moving away from the slick-cocking ‘gimmick’ the MPi 81 had a conventional, non-reciprocating, charging handle on the left side of the receiver. The MPi’s polymer lower allows it to be a pound lighter despite being slightly longer as a result it also balances better than the standard Uzi carbine.
The MPi submachine guns fire from an open bolt and had a 10in barrel and has a push through safety with settings for safe, semi and full auto and unlike the Uzi it does not have a grip safety – simplifying manufacture.
The MPi also has a progressive trigger which when set to full-auto will allow the user to fire semi when pulled to the first stage and full when pulled fully to the rear. While the MPi 69 had a cyclic rate of around 500 per minute, the MPi 81 increased this rate to ~750rpm.
The MPi can be field stripped by simply rotating the receiver end cap up 90-degrees and pulling the bolt out the rear. The gun can be further stripped but the moulded polymer lower receiver can be difficult to remove from the upper. Like the Uzi the barrel nut is unscrewed to remove the barrel.
It is unclear just how many MPi submachine guns were produced but they didn’t see any significant contracts beyond a few small sales to police forces and militaries.
The MPi 81 remained in production into the early 1990s when it was replaced by the smaller and more compact Steyr TMP in 1992. In turn the TMP design was sold to B&T a decade later.
Our thanks to the collection that let us take a look at this MPi 81 and to our friend Miles Vining for sharing some of his shooting footage of the MPi 81 with us, check out his video here and more of his work at www.silahreport.com.
The need for compact weapons capable of being carried with ease by troops who would be getting in and out of vehicles, jumping from planes and fighting in close quarters had been proven during World War Two. While it may look unusual the Hotchkiss ‘Type Universel’ was an extraordinary attempt at creating an extremely compact submachine gun.
Submachine guns had proven themselves to be an useful weapon during the war, their small size and high rate of fire made them invaluable, especially in close-quarter situations. The post-war French army found itself armed with a plethora of surplus submachine guns, which included: the German MP40, the British STEN and the American Thompson as well as their own pre-war MAS-38s, in 7.65x20mm Longue, which had been designed before the war. By 1946 they had already begun the process of selecting a new, more compact submachine gun. Seeking to standardise on a single weapon and calibre they selected 9x19mm and launched a programme to find a new submachine gun or Pistolet Mitrailleur.
The French War Ministry launched a call for state arsenals and civilian manufacturers, such a Hotchkiss and Gevelot/Gevarm, to submit submachine guns for trials. Hotchkiss submitted the Type 010 or Type Universel, often anglicised as Universal, despite this the guns are typically marked ‘CMH2’ – ‘Carabine Mitrailleuse Hotchkiss’.
Chambered in 9x19mm, the Hotchkiss fed from MP40-pattern magazines, used the ubiquitous blowback action, it fired from a closed bolt and had a cyclic rate of approximately 650-rounds per minute. The Hotchkiss is select fire with a push through selector that allows for semi and full-auto fire. It appears that the weapon’s only safety mechanism is to close the ejection port cover and lock the bolt in place – much like a US M3 Grease Gun.
Designers went to extraordinary lengths to minimise the size of the Universel. Not only did the stock fold beneath the barrel but the magazine well and magazine could be rotated forward to sit beneath the barrel with the magazine fitting between a U-shaped cut-out in the butt stock. The weapon is a curious mix of stamped metal and complex machining with a difficult to machine bolt and barrel contrasting with a stamped sheet metal lower receiver and wide stamped trigger.
In 1950 Hotchkiss sales material described their weapon as “the individual defense weapon meeting the requirements of the most modern Armies and Police. Folded up, it is very compact, easy to transport, conceal and parachute. It is quick to set up and comes unfolded in the form of a carabiner…”
The weapon’s pistol grip was hollow and when folding up the stock, the grip folds forward to cover the trigger. The Universel’s most interesting feature is its telescoping barrel which retracts several inches inside the receiver. These features brought the Hotchkiss’ length down from 30.6 inches (77.6cm) when the stock was extended, to 22 inches (54cm) with the stock folded, and an impressive 17.25 inches (43.5cm) when fully collapsed. The nature of how the pistol grip folded with the stock meant the weapon could not be fired with its stock collapsed. When fully collapsed the weapons’ depth was just 6 inches or 15.3cm.
First we unfold the stock by pushing the knurled collar forward to unhook it from the base of the magazine well. When fully unfolded a spring detent locks into the rear of the receiver.
At the same time the pistol grip also unfolds. If we had a magazine loaded into the weapon we would deploy the barrel first – in order to allow the magazine to slide back through the magazine well and fold down to lock into position. The bolt follows the barrel forward so once the magazine is locked into position the weapon has to he be charged to chamber a round.
The collapse the weapon again, first fold the stock, then depress the lever just behind the trunnion to unlock the barrel, push the barrel assembly and bolt to the rear until it locks.
The Universel’s extreme compactness was both its best and worst feature, the complexity of having every protruding part fold or retract made the weapon expensive to produce. It also gave the weapon poor ergonomics with a narrow butt, an uncomfortable pistol grip and narrow sights which weren’t ideal for quick target acquisition.
The Hotchkiss was one of a whole host of compact folding submachine guns developed after World War Two. These included the MAS MLE 1948, the MAC Mle 1947 and of course the MAT-49 from French state-arsenals. The French guns were by no means the first to have folding magazines, that concept dates back to submachine guns like the SIG MKMO. Incidentally, SIG’s last developmental iteration of their submachine guns, the MP48, was also developed in the late 1940s and retained the MKMO’s folding magazine housing.
A 2001 article from the Gazette des Armes, by Michel Malberbe, includes an account from a Legionnaire sergeant who describes using the Hotchkiss in Indochina:
“I saw for the first time the submachine gun Hotchkiss in ‘Indo’. We were responsible for the security of the RC4 [Route Coloniale 4], and the staff sent us wooden cases containing these famous submachine guns. As the documents were not very complete, our company commander… had trouble explaining how it worked. It was quite funny, because folded, this submachine gun did not look very serious. It was like a rectangular scrap metal package… We used it for the first time on the Lang Son side, during a serious collision between the Viets and a convoy… I remember that this machine worked very well. But it lacked a little precision. Anyway, it was much better than the small MAS-38 submachine gun, whose magazine always blocked [jammed] at the wrong time! On the other hand, I think I remember that the Hotchkiss did not stand up to mud and that it was misery to clean it. In addition it was quite difficult to unfold because of the buttons found everywhere. We never knew which one to press. We, in any case, always transported them in the firing position…”
While the Type Universel definitely wouldn’t win any prizes for its aesthetics, it was a ambitiously-engineered and well-built submachine gun. Despite this the design was simply too complex, as we have heard troops in the field rarely took advantage of its compact features preferring to carry the weapon at the ready. The Universel sacrificed a lot to achieve its compactness and the ergonomics of the weapon leave a lot to be desired with an extremely small butt and a hollow pistol grip that just feels wrong.
It is believed that in total just 7,000 Hotchkiss Universels were produced between 1948 and 1952. The French military rejected the Hotchkiss feeling the weapons was too complex and too expensive to manufacture. Instead, the MAT-49 submachine gun, designed by Tulle, was eventually adopted. The MAT-49 also had a folding magazine housing making it almost as compact as the Universel but without its complexities.
While it underwent some field testing with the French in Indochina no major military contracts were won but small numbers were purchased by the French police, the colonial police in Morocco and some were sold to the military of Venezuela. The Universel would be one of the last firearms produced by Hotchkiss et Cie, who had built numerous armaments for the French army during the 19th and 20th centuries, before it closed its weapons manufacturing arm in the early 1950s refocusing on automobile manufacture.
Special thanks to Battlefield Vegas for allowing us to take a look at their Hotchkiss.
The Type 64 is an integrally suppressed submachine gun designed in China in the early 1960s, taking several design elements from other Combloc small arms. The guns were manufactured at one of China’s State Factories (with the factory’s ‘66’ in a triangle marking in the left side of the receiver – this indicates the factory number, although available sources differ on which it refers to, either 66, 626 or 366).
Designed concurrently with the Type 64 suppressed pistol during the 1960s, the Type 64 SMG was developed for Communist China’s special forces for use in clandestine operations. Chambered in the standard 7.62×25 ComBloc pistol round, the Type 64 functioned best with Type 64 subsonic ammunition, a special subsonic spitzer projectile variation of the standard 7.62mm pistol round. It did not chamber the low power 7.65x17mm round used by the Type 64/67 pistols.
The Type 64 fed from 20 or 30 round double stack magazines which were reportedly developed from or at least influenced by the Soviet PPS-43’s double stack, double feed magazines. The weapon used a conventional blowback action and fired from an open bolt. Its maximum effective range was approximately 200 metres with two position flip up sights ranging out at 100 and 200 metres.
The Type 64 had a milled receiver with lightening cuts and weighed in at 7.6lb or 3.5kg unloaded. It took its bolt from the Russian PPS-43 submachine gun and a trigger group inspired by the ZB vz.26 light machine gun’s, which was well liked by the Chinese military.
The Type 64 shared a number of external similarities with the standard Type 56 AK-clone including its pistol grip, safety lever and under-folding stock (which is similar but slightly different to the Type 56-I’s under-folding stock).
The weapon has a number different controls including a conventional AK-style safety-come-dust cover, on the right side of the receiver – which blocks the travel of the bolt. On the opposite side of the receiver it has a two-position fire selector for semi and full-auto – you can just about reach these when the stock is folded. The forward position is for semi and the rearward position is full-auto. Finally, the 64 also has an additional trigger block safety, taken from the SKS, which pivots forward to prevent the trigger from being pulled.
According to a report written in October 1971, by the Small Arms Systems Lab of the US Army Weapons Command Research and Engineering Directorate, the weapon has an extremely high rate of fire of over 1,300 rpm.
A cyclic rate that high was the result of a combination of back pressure from the suppressor, the ammunition used and its blowback action. The Type 64’s chamber was fluted with three longitudinal cuts to aid extraction at its high rates of fire. It should be noted, however, that the 1971 US army tests were carried out with standard velocity ammunition – rather than the specialised subsonic Type 64.
The top cover is removed by pushing in what at first appears to be a spring-loaded detent, but is actually the recoil spring guide rod. The front of the top cover is held in the receiver by a lip which fits into a slot just above the breech. The top cover itself is a thin piece of stamped sheet metal with the serial number stamped at the rear.
With the top cover removed we can see inside the action. The 64 has a single recoil spring held in place by a guide rod. At the rear of the receiver is a small plastic buffer, designed to both soak up some of the recoil energy and to help reduce action cycling noise. There is an ejector on the left side of the receiver and guide rails along which the bolt moves. To remove the bolt it is pulled fully to the rear and then tilt it upwards.
The Type 64 is a pretty compact weapon despite the length of its suppressor. It has an under-folding stock, with two spring-loaded buttons at the rear of the receiver which have to be pushed in to fold and unfold the stock. When folded the weapon is 25in (or 63.5cm) long, with the stock adding 8 inches when it is deployed. The weapon can be used with the stock folded, although some of its controls are partially obscured.
The suppressor is contained by a housing which attaches to the receiver by an interrupted thread. The Type 64’s barrel was ported with 36, 3mm vents at the muzzle-end while the suppressor has 12 metal dished baffles held captive on a pair of guide rods. The weapon’s sights are mounted on the suppressor housing which attaches to the receiver by an interrupted thread. Sadly, I didn’t have time to strip the suppressor itself but the photos below, from my friend Chuck over at Gunlab, show the Type 64’s ported barrel and baffles well.
The 1971 Small Arms Systems Lab report found that the audible report of the gun, was 150db at the rear of the receiver and 157db 12 feet down range, however, this is probably not the best indication of the Type 64’s capabilities as the report states that the gun was tested with Chinese Type 51 standard velocity 7.62x25mm ammunition. Ideally, the weapon would have been used with subsonic Type 64 ammo specially developed for China’s suppressed pistol-calibre weapons. Chinese sources reportedly put the weapons noise level at 84db when using subsonic ammunition. The US report did note that while its noise suppression wasn’t outstanding, it very effectively hid its muzzle flash.
It appears to have been primarily used by Chinese scouts and special forces and saw action during the 1979 Sino-Vietnamese War. In the late 80s the Chinese replaced the Type 64 with the suppressed version of the Type 85 submachine gun, also chambered in 7.62x25mm, which used the same magazines, the Type 85 had a tube metal and stamped receiver which was simpler to manufacture than the 64’s machined receiver. The Type 85 has subsequently been superseded by guns like the bullpup Type 05.
Special thanks to the collection that holds this weapon for allowing me to take a look at it. As always guys thank you for watching. If you enjoyed the video please share it with friends and help us
During a recent discussion over on the HF Twitter page, I was informed to my surprise that the Sterling submachine gun had been added as a DLC weapon to Call of Duty WW2. I thought it would be interesting to take a look at the model used in the game and see how historically accurate it is. I recently finished writing a book about the Sterling and have done some research into the theories of the Patchett prototypes seeing some action during the war.
The model that Sledgehammer Games, the developer, have used appears to be a mix of the early prototypes and the later production Sterlings. In terms of historical accuracy the gun should be correctly referred to as the Patchett Machine Carbine – after its designer George Patchett. It only began to be called the Sterling, after the company that manufactured it in the 1955.
The model appears to share some similarities with the original Patchett prototype, including the step in the welded together receiver – the result of using left over Lanchester machine carbine receiver tubes, which was also built by Sterling. The position of the stock hinge point also appears to be in the correct place (it was later moved forward when the stock was modified). However, it appears to be feeding from a much later curved commercial pattern Sterling magazine (you can tell by the zigzag outline on the rear of the magazine and of course the curve – although seemingly not quite as curved as the real thing.) In reality the Patchett prototypes fed from Sten magazines, it wasn’t until after the war that Patchett designed his excellent 34-round magazine.
Here’s a photo of the Patchett’s original tool room prototype that I took last year while researching:
Note how they even replicated the slanted brazed on rear sight that was added after the first trials. The game developers, however, added a metal guard tab just in front of the ejection port – something that wasn’t added until later and they also gave the gun markings on the magazine housing that mimic the later commercial Sterling markings.
The game model also has the Sterling’s helical grooves on its breech block, something the early prototypes did not have. It seems the developers mashed together the Patchett prototype with later production Sterling L2A3/Mk4s.
Did the Patchett See Action During WWII?
While the early Patchett prototypes may have seen action in late 1944 – 1945 with one or two prototypes possibly making it into the hands of specialist troops there is no solid evidence to support this. There is a tantalising grainy photograph of what is believed to be members of the Free French SAS on operations in the Netherlands in April 1945 (during Operation Amherst). The photo above shows what appear to be two Patchetts during a meeting with local resistance members. There is also an uncorroborated story that one prototype was carried by Lt.Col. Robert Dawson, officer commanding No.4 Commando, during Operation Infatuate but there is no documentary evidence to support this. I discuss these and several other pieces of evidence that support the idea that the Patchett/Sterling saw action in my new book on the Sterling.
I have written a book for Osprey’s Weapon series looking at the development, use and significance of the Sterling, it’s available now, you can find out more about it here.
Before its adoption by the British Army in 1954 the Patchett Machine Carbine, later better known as the Sterling submachine gun, was extensively tested all over the world. The Patchett went through nearly a decade of testing, evaluation and refinement. It was tested by British troops around the world, from West Germany to Africa, from the middle east to Malaya.
Today, we’re going to examine a unique Patchett/Sterling prototype assembled in Malaya. The gun we’re examining is officially a MkII Patchett Machine Carbine, but as the guns are better known as the Sterling we will refer to it as such from here on out. This prototype has been specially adapted with a shotgun style rib sight to help aiming in jungle conditions.
It was in Malaya that the specially adapted but short-lived prototype improvement emerged. As early as December 1952, British troops were testing the gun during operations against communist insurgents in Malaya. The harsh jungle conditions were a challenge for any weapon but an early report testing a single prototype noted that the weapon performed well but one of the issues identified was that the rear aperture sight was found to be “smaller than was desirable” and the report suggested that the aperture be widened to 0.098 inches 2.5mm – the same as the Owen gun. The report also noted that the front sight “did not stand out well in relation to the front sight protectors”.
It seems that when a batch of 75 trials guns arrived in 1953, a number of them were specially adapted in theatre. It was hoped that the shotgun-style rib sight fitted along the length of the receiver would aid snap shooting in the jungle. It was intended to enable users to engage fleeting targets quicker and improve ‘first shot hit’ probability in thick jungle and heavy rainstorms.
During operations in Malaya and Borneo, many scouts and point men carried shotguns such as the semi-automatic Browning Auto-5. Shotguns were favoured during jungle operations because of the ease with which they could be quickly and instinctively aimed and their exceptional close-range firepower.
The modification saw the complete removal of the standard front and rear sights and the razing on of a rib sight running along the length of the top of the gun from the muzzle to the rear sight. It appears an armourer cut down and removed the front and rear sight assemblies and used them as mounting points. The first few inches of the rib are stippled to minimise glare and a brass front sight bead has been added to help sight acquisition.
The simpler sight rib also helped with another issue that was identified during early jungle testing, it removed the problem of the sights getting clogged with mud. It is unknown just how many were adapted but at least three are known to survive. The jungle-specific modifications were short-lived and not formerly adopted because the rib sight offered poor longer range accuracy.
Here are some more detail photographs of the rib sight prototype:
With the adoption of the Patchett as the L2A1, in 1954, a list of modifications based on trials recommendations was drawn up in June 1953, one of the suggestions was the enlargement of the rear sight aperture to 0.1, (2.5mm) 0.15 (3.8mm) or 0.2 inches (5mm). In August 1953, the infantry board decided that the 100 yard aperture would be 0.15 (3.8mm) in diameter while the 200 yard would be 0.1, (2.5mm). The spacing of the rear sight protectors was also subsequently widened to 0.55 inches (14mm). With these changes made the Sterling saw service in the jungles of Malaya and Borneo for over a decade during the Malayan Emergency and Indonesian Confrontation.
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‘Operational Research Section, Singapore, Technical Note No.5 – Technical Notes on Initial Trials of the Patchett Carbine in Malaya’, Maj. R.St.G. Maxwell, 1th December, 1952, Royal Armouries Library
‘Minutes of a Meeting held at the war office on Friday 7th August, 1953, to decide whether the Patchett sub-machine gun be introduced into the Service as a replacement for the Sten sub-mahcine gun’, Royal Armouries Library
I have written a book for Osprey’s Weapon series looking at the development, use and significance of the Sterling, it’s available now, you can find out more about it here.
Officially designated by Heckler & Koch as the ‘Spezialkoffer’ or Special Case, the Briefcase Gun, sometimes referred to as the Operational Briefcase, is a clandestine weapon system designed for personal protection details. The ‘Special Case’ was introduced in the late 1970s offering the firepower of an MP5K in a concealed package which could be rapidly brought into action.
While the MP5K is already a compact weapon that can be carried concealed under a coat or tucked under the arm, the Special Case, in theory, allowed the weapon to be carried in an instantly accessible way. One H&K leaflet stated that the case retains “approximately the same rapid readiness to fire” as an unconcealed submachine gun. The case had the added advantage of being able to be operated with just one hand.
To build the brief case Heckler & Koch turned to Hofbauer GbmH, a German manufacturer that specialises in extrusion blow moulded protective cases for tools and equipment, to make the case body. The case is made from black plastic moulded over an aluminium body with a stainless steel locking clasps and a strip of silver trim tape around the lower half. Inside on the right hand rim of the lower half of the case is the case maker’s marking ‘Hofbauer Boss Flanegg’.
Inside the case Heckler & Koch used a modified STANAG claw mount, with a modified release lever, that was normally used to mount optics on G3s and MP5s. The claw mount system holds the weapon in place and a firing mechanism connects a trigger in the briefcase’s handle to the weapon’s trigger inside. The weapon itself is an MP5K, the example we’re examining today has a ‘SEF’ selector and the contoured stahl G3 griffstück (pistol grip assembly). The MP5K was first introduced in 1976, reportedly developed following a request from the security detail of a South American head of state.
The muzzle of the MP5K’s 4.5 inch barrel fits into a tube or shroud in the left side of the case. Below the weapon is a clip to hold a standard plastic MP5 cleaning kit. While inside the lid of the case there is a clip to hold a spare magazine. The MP5K-PDW, introduced in the early 1990s, will not fit into the case as the muzzle and folding stock prevents it from fitting.
The trigger in the case’s handle works through a series of linkages which connect it with the MP5K’s trigger. Pulling the external trigger upwards pulls an linkage forward which in turn acts on a pivoted arm which pulls the weapon’s trigger. The case has a built in safety on the left side of its handle. When pulled to the rear with the thumb it moves a blocking bar backwards and allows the trigger, inside the handle, to travel upwards to fire the weapon. There is some variation to the trigger mechanisms with a slightly dog-legged, rather than straight, trigger arm being introduced to allow the use of MP5Ks with ambidextrous selectors.
Once fired the spent cases are deflected down into the body of the case and can only be removed once the case is opened to reload or remove the weapon from the case. There is no ejection system built into the case.
In addition to the case we have examined in this video/article, there is also another version based on a leather satchel-style briefcase, known as the ‘Spezialtasche’ or Special Bag. Instead of the moulded plastic case the MP5K is held inside a leather case with a ‘reach-inside opening’, which allows the user to put their hand inside the case and hold the pistol grip and operate the weapon’s controls. The gun is still held in the same kind of cradle claw mount but the leather case does not have the integrated trigger in its handle. The upper half of the case, held in place by four snap buttons, could come free of the lower section to allow the MP5k to quickly be accessed for reloading and removal from the claw mount.
As you would expect aiming a briefcase is no easy feat, the Special Case was intended for engaging targets at very close ranges or gaining initial fire superiority, suppressing a target long enough to either deploy the MP5K properly from the case or extricate the principal being protected. One of the major issues with the case is naturally limited access to the weapon which makes changing fire more, clearing stoppages and reloading impossible without opening the case – which can only be accomplished by opening the case’s two locking clasps, which in a contact situation would take precious seconds of fumbling.
Here’s what appears to be some vintage promotional footage showing the case in action:
A substantial number were sold, especially to Middle Eastern countries. During the 2003 Invasion of Iraq, the troops from the US 7th Infantry discovered a cache of 24 H&K Briefcases untouched, like new in their wrappings, bought by Saddam’s regime. Heckler & Koch continue to offer the case, two models are currently listed on their website: the original briefcase, now referred to as ‘Schießkoffer’ or ‘shooting case’, and a quick deploy ‘Zerfallkoffer’ case (offered for both the MP5K and the MP7) .
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Specifications (taken from H&K data sheet c.1984):
Case External Dimensions: 17.24×4.25×12.67in (438x108x322mm)
Weight of case without MP5K: 3.3 lbs (1.5kg)
Weight of case with unloaded MP5K: 7.72lbs (3.5kg)
Weight of case with MP5K + 60 rounds: 14.88 lbs (6.75kg)