The StG 44 (abbreviation of Sturmgewehr 44, "assault rifle 44") is a German selective-fire assault rifle also known as the MP 43 and MP 44 developed during World War 2.
MP 43, MP 44, and StG 44 were different designations for what was essentially the same rifle with minor updates in production. The variety in nomenclatures resulted from the complicated bureaucracy in Nazi Germany. StG is an abbreviation of Sturmgewehr. According to one account, the name was chosen personally by Adolf Hitler for propaganda reasons. The rifle was chambered for the 7.92×33mm Kurz cartridge. This shorter version of the German standard (7.92×57mm) rifle round, in combination with the weapon's selective-fire design, provided a compromise between the controllable firepower of a submachine gun at close quarters with the accuracy and power of a Karabiner 98k bolt-action rifle at intermediate ranges. Studies had shown that few combat engagements occurred at more than 300 metres (330 yd) and the majority within 200 metres (220 yd). Full-power rifle cartridges were excessive for most uses for the average soldier. Only a trained specialist, such as a sniper, or soldiers equipped with machine guns, which fired multiple rounds at a known or suspected target, could make full use of the standard rifle round's range and power. The British were critical of the weapon, saying that the receiver could be bent and the bolt locked up by the mere act of knocking a leaning rifle onto a hard floor. A late-war U.S. assessment derided the StG-44 as "mediocre", "bulky" and "unhandy", declaring it incapable of sustained automatic fire and prone to jamming, though the report accepted that its accuracy was "excellent for a weapon of its type".
In the late 19th century, small-arms cartridges had become able to fire accurately at long distances. Jacketed bullets propelled by smokeless powder were lethal out to 2,000 metres (2,200 yd). This was beyond the range a shooter could engage a target with open sights, as at that range a man-sized target would be completely blocked by the front sight blade. Only units of riflemen firing by volley could hit grouped targets at those ranges. That fighting style was taken over by the widespread introduction of machine guns, which made use of these powerful cartridges to suppress the enemy at long range. Rifles remained the primary infantry weapon, but in some forces were seen as a secondary or support weapon, backing up the machine guns. In early 1918, Hauptmann (Captain) Piderit, part of Gewehrprüfungskommission ("Small Arms Examination Committee") of the German General Staff in Berlin, submitted a paper arguing for the introduction of an intermediate round in the German Army with a suitable firearm. He pointed out that firefights rarely took place beyond 800 metres (870 yd), about half the 2 km (1.2 mi) sight line range of the 7.92×57mm round from a Mauser Gewehr 98 rifle or less for MG 08 machine gun. The German Army showed no interest, as it already had the MP 18 submachine gun firing 9 mm pistol rounds and did not want to create a new cartridge.
At the start of World War II, German infantry were equipped with weapons comparable to those of most other military forces. A typical infantry unit was equipped with a mix of bolt-action rifles and some form of light, medium or a general-purpose machine guns. A problem with this mix was that the standard rifles were too large to be effectively used by mechanized and armored forces, where they were difficult to maneuver in the cramped spaces of an armored vehicle. During the invasion of the Soviet Union, increasing numbers of semi-automatic Tokarev SVT-38 and SVT-40s were used by the Red Army – mostly elite units and non-commissioned officers – while some Soviet rifle companies were completely equipped with PPSh-41 submachine guns. After experiencing high volumes of automatic fire from these weapons, German commanders re-thought their small arms requirements. The German army had been attempting to introduce semi-automatic weapons such as the Gewehr 41, but these proved troublesome in service, and production was insufficient to meet requirements. By 1941, it was becoming clear that action needed to be taken. Although various experimental rounds had been developed to one degree or another by this point, the Army instead decided to select yet a new design, the Polte 8×33mm Kurzpatrone ("short cartridge"). This used a spitzer bullet and basic cartridge design of the standard 7.92×57mm Mauser rifle cartridge, cutting down the cartridge from the original 7.92×57mm Mauser to 7.92×33mm Kurz.
Contracts for rifles firing the 7.92×33mm Kurz round were issued to both Walther and Haenel (whose design group was headed by Hugo Schmeisser), were asked to submit prototype weapons under the name Maschinenkarabiner 1942 ("machine carbine") or MKb 42. Both designs were similar, using a gas-operated action, with selective fire. Since both rifles shared the title of Maschinenkarabiner 42 the letters (H) and (W) were added to differentiate the two. The MKb 42(H) along with the less successful MKb 42(W) were predecessors of the later MP 43, MP 44, StG 44. The majority of the MP 43's features came from the MKb 42(H), with the hammer firing system and closed bolt coming from the MKb 42(W). As work moved forward to incorporate this new firing system, development halted when Hitler suspended all new rifle programs due to administrative infighting within the Third Reich. Hitler ordered that newer submachine guns were to be built, and he strongly disagreed with the use of the Kurz ammunition. To keep the MKb 42(H) development program alive, the Waffenamt (Armament Office) re-designated the weapon as the Maschinenpistole 43 (MP 43) and, making a few improvements, billed the weapon as an upgrade to existing submachine guns. Much time was wasted trying to make the MP 43 a replacement for the Karabiner 98k rifle. This goal was eventually realized to be impossible; the MP 43 cartridge was too weak to fire rifle grenades, too inaccurate for sniping, and the weapon was too short for bayonet fighting. In September 1943, it was decided that the MP 43 would supplement rather than replace the Kar 98k.
Adolf Hitler eventually discovered the designation deception and halted the program again. In March 1943, he permitted it to recommence for evaluation purposes only. Running for six months until September 1943, the evaluation produced positive results, and Hitler allowed the MP 43 program to continue in order to make mass production possible. The weapon made extensive use of for the 1940s advanced cost-saving pressed and stamped steel components rather than machined parts. The first MP 43s were distributed to the Waffen-SS; in October 1943, some were issued to the 93rd Infantry Division on the Eastern Front. Production and distribution continued to different units. In April 1944, Hitler took some interest in the weapon tests and ordered the weapon (with some minor updates) to be re-designated as the MP 44. In July 1944, at a meeting of the various army heads about the Eastern Front, when Hitler asked what they needed, a general exclaimed, "More of these new rifles!". Production soon began with the first batches of the new rifle being shipped to troops on the Eastern Front. By the end of the war, a total of 425,977 StG 44 variants of all types were produced and work had commenced on a follow-on rifle, the StG45. A properly trained soldier with a StG 44 had an improved tactical repertoire, in that he could effectively engage targets at longer ranges than with an MP 40, but be much more useful than the Kar 98k in close combat, as well as provide covering fire like a light machine gun. It was also found to be exceptionally reliable in extreme cold.
A primary use of the MP 44/StG 44 was to counter the Soviet PPS and PPSh-41 submachine guns, which used the 7.62×25mm Tokarev round. These cheap, mass-produced weapons used a 71-round drum magazine or 35-round box magazine and though shorter-ranged than the Kar 98k rifle, were more effective weapons in close-quarter engagements. The StG 44, while lacking the range of the Kar 98k, had a considerably longer range than the PPS/PPSh submachine guns, more power, a comparable rate of fire, an ability to switch between a fully automatic and a default semi-automatic fire mode and surprising accuracy. At the end of the war, Hugo Schmeisser claimed that 424,000 MP 43/MP 44/StG 44 rifles were built between June 1943 and April 1945 in four plants: 185,000 by C.G. Haenel in Suhl; 55,000 by J.P. Sauer & Sohn in Suhl; 104,000 in Erfurt; and 80,000 by Steyr-Daimler-Puch AG in Steyr, Austria. This was fewer than the 1.5 million ordered, and far fewer than the 4 million planned. Some 822 million rounds of 7.92×33mm Kurz ammunition were produced from 1942 to 1945. At the beginning of March 1945, the troops had 273.9 million rounds.
The Sturmgewehr remained in use with the East German Nationale Volksarmee with the designation MPi.44 until it was eventually replaced with variants of the AK-47 assault rifle. The Volkspolizei used it until approximately 1962 when it was replaced by the PPSh-41. It was still used by other public security formations thereafter. Other countries to use the StG 44 after World War II included Czechoslovakia and Yugoslavia, where units such as the 63rd Paratroop Battalion were equipped with it until the 1980s. Argentina manufactured their own trial versions of the StG 44 made by CITEFA in the late 1940s and early 1950s, but instead adopted the FN FAL in 1955, because it used the then more common and powerful 7.62×51mm NATO round. 7.92mm Kurz ammunition is currently manufactured by Prvi Partizan of Serbia. The extent to which the Sturmgewehr influenced the development of the AK-47 is not clearly known. Apart from external layout similarity and the gas-operation principle, the AK-47 was not a copy of the German gun because the AK-47 used a very different mechanism. However, tens of thousands of Sturmgewehrs were captured by the Soviets and were likely provided to Kalashnikov and his team, so it is likely that he knew of it while designing the AK-47. United States and, later, NATO developed assault rifles along a roughly similar path by at first adding selective-fire capability in a reduced power, full-caliber cartridge.