The StG 44 (abbreviation of Sturmgewehr 44, "assault rifle 44") is a German selective-fire rifle developed during World War II. It is also known as the MP 43 and MP 44 (Maschinenpistole 43 and 44).
The StG 44 was the first successful assault rifle, with features including a relatively short cartridge, controllable automatic fire, a more compact design than a battle rifle with a quicker rate of fire, and intended for hitting targets within a few hundred metres.
The StG 44 fulfilled its role effectively, particularly on the Eastern Front, offering a greatly increased volume of fire compared to standard infantry rifles. It came too late to have much effect on the war, but did influence the Soviet AK-47 that was introduced three years after the war concluded. Its influence can still be seen in modern assault rifles.