Schmeisser Sturmgewehr MP-43 MP-44 Stg-44

MP 43 assault rifle, the first production variant of the Sturmgewehr, left side
MP 43 assault rifle, the first production variant of the Sturmgewehr, left side

 MP 43 assault rifle, the first production variant of the Sturmgewehr, right side
MP 43 assault rifle, the first production variant of the Sturmgewehr, right side

MP 43 assault rifle partially disassembled
MP 43 assault rifle partially disassembled

Stg.44 assault rifle with the Krummlauf Vorsatz J (curvedbarrel) attachment, which was designed to be fired
Stg.44 assault rifle with the Krummlauf Vorsatz J (curvedbarrel) attachment, which was designed to be fired “around the corner”or from inside the armored vehicle



Specification Value
Full text name Schmeisser Sturmgewehr MP-43 MP-44 Stg-44
Caliber cartridge 7.9x33 PP Kurz (7.92 PP Kurz, 8mm PP Kurz)
Action type select-fire
Trigger type sa
Overall length, mm 940
Barrel length, mm 419
Weight empty, kg 5,22
Magazine capacity, rounds 30
Cyclic rate of fire, rounds/min 500

Hitler’s Germany was the leading country in the development of the assault rifle. Even the term “assault rifle”, is no more than a translation of the German term Sturmgewehr, devised for propaganda reasons by no less than Hitler himself (or at least so the legend goes).
Germany began to develop intermediate cartridges during the mid-1930s. There were some developments in 7 mm and 7.75 mm calibre, but Heereswaffenamt (HWaA, ordepartment of armaments), decided to retain the existing rifle calibreof 7.92 mm, to save money on new machinery that would otherwise be required to produce bullets and barrels of a non-standard calibre. The new 7.92 mm “short infantry cartridge” (Infanterie patrone Kurz),developed by the Polte Werke in 1938, was officially designated the 7.92 mm PP Kurz. It had metric dimensions of 7.92 x 33, considerably shorter and less powerful than the standard 7.92 x 57 rifle / MG cartridge, and propelled a 8.1 g (125 grain) bullet to roughly 680 meters per second.
In 1939 HWaA issued a contract for the development of a “Maschinenkarabiner”, or machine carbine (MKb forshort), chambered for the new Kurz cartridge, to the company C. G.Haenel Waffen und Fahrradfabrik. Initial development took place underthe designation of MKb.42 – Maschinenkarabiner, 1942. The new weapon was intended as a replacement for submachine guns, bolt action riflesand, partly, light machineguns for front troops and was intended to have an effective range of 600 meters or so.
The famous designer Hugo Schmeisser led the Haenel development team, which produced the first working prototypes of new weapon by 1942, known as MKb.42(H). After extensive combat tests of the MKb.42(H), HWaA asked Haenel for several significant improvements over their initial design. Most notable was the request to replace the submachine-gun like open-bolt firing system with more convenient closed-bolt system, to improve single-shot accuracy. Schmeisser redesigned the weapon accordingly, and by 1943 submitted the improvedversion to the HWaA. But by this time Hitler had ordered that only existing types should be developed and manufactured, and theMaschinenkarabiner was not on this list. To avoid this nuisance, the Germans decided simply to rename the MKb to the MP, or Machinen-pistole (submachine gun), which was on the “approved” list. So, the new and improved weapon received the designation MP-43, and went into limited production and field trials at the front. During the following year,the MP-43 experienced several minor modifications, leading to MP-43/1 and MP-43/2 designations, but these differed only in details such asfront sight bases and grenade launcher interfaces.

In April 1944 the designation of all MP-43s was changed to MP-44, with no actual changes made to the design.  At this time there were plenty of glowing reports from the German troops fighting with MP-43 and MP-44 at the Eastern front. Seeing these reports, Hitler finally approved the mass production and issue of the new “wunderwaffe”, and in December 1944 officially christened it the Sturmgewehr, or Assault Rifle, 1944 (StG-44) This was a pure act of propaganda, but thename stuck not only to that gun, but also to the whole new class of automatic weapons designed to fire intermediate cartridges.

Thetotal number of MP-43, MP-44 and StG-44 produced was about 450,000,and these guns proved very effective, but not without some flaws. Afterthe end of the war the direct development of the Stg-44 was stopped,but the East German police used some remaining guns. Another major post-war user of Stg.44 was Yugoslavia; their paratroopers used it under the designation “Automat, padobranski, 7.9 mm M44, nemacki” untilthe early 1980s, when the Kalashnikov-type M64 and M70 rifles finally replaced it. Yugoslavia also produced 7.92 x 33 Kurz ammunition untilthe late 1970s.

 The Sturmgewehr StG-44 (like its earlier versions MP.43 and MP.44) is a gas operated, selective fire weapon. The receiver and trigger housing with pistol grip are made from steel stampings, with machined steel inserts. The trigger housing with pistol grip is hinged to the receiver and folds down for disassembly. The gas drive utilizes a long-stroke piston, and the bolt is tipped down tolock into the receiver. The gun is fired from a closed bolt. The MP-43 and subsequent versions all were hammer-fired, while the MKb.42(H) was striker-fired. The safety lever is located at the left side of the pistol grip unit, and a separate cross-bolt type of fire mode selector allows for single-shot and full auto fire. The charging handle is attached to the gas piston rod, and the ejection port has a dust cover.The recoil spring is located inside the wooden butt. At the top of the butt there is container for a cleaning kit, closed by the spring-loaded steel cover. The Stg-44 was provided with open, leaf-type sights, and could be fitted with telescope sights or a specially developed active infrared sighting unit, called “Vampir” (vampire).

The muzzle of the Stg-44 was threaded to accept a cup-like grenade launcher; a special muzzle nut usually covered the threads. The Stg-44 also couldbe fitted with a special curved barrel attachment (“Krummlauf”), which allowed the gun to be fired “around the corner” or from inside a tank,without exposing the shooter to the enemy fire. Several types of these attachments were developed, but only one type, the 30-degree “KrummlaufVorsatz J”, was apparently manufactured in any significant numbers.This device had a special mirror sighting adapter and reduced the bullet velocity down to mere 300 meters per second due to the highfriction in the curved barrel extension. This apparently did not bother the German Army, since these curved barrel adapters were intended for short-range encounters only.

A special note must be made about relations between the Sturmgewehr Stg.44 and Kalashnikov AK-47 rifles, and their respective designers, Hugo Schmeisser and Mikhail Kalashnikov. many western sources claim that Schmaisser, while held captive in Russia after the WW2, had participated in development of AK. less-informed sources claim that AK is an off-shot of the Stg-44. Both claims are not true. The latter is easiest to debunk, because of numerous technical differencies in two weapons. Almsost every major part and sub-assembly is different between two designs. The former looks credible on the first glance, because Schmeisser, among several other German small arms designers, indeed was held in Izhevsk between 1947 and 1951, where they worked on a number f ‘paper only’ projects, mostly continuing their war-time developments. However, most design work on AK-46 and AK-47 was carried by Kalashnikov some thousand kilometers from Izhevsk, in the small city of Kovrov. Kalashnikov brought his  more or less finalized AK-47 design to Izhevsk for mass production in early 1948. Furthermore, at the time everything related to development of AK-47 was classified as “Secret”, and german engineers were expressly prohibited from work with any classified materials.
To sum it up, while Sturmgewehr indeed did serve as an inspiration for development of the AK-47 (and many of its early competitiors), the latter was a separate, independednt and indigenous design.

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