The M49 submachine gun is a Yugoslavian submachine gun chambered in 7.62x25mm Tokarev, designed for use with the Yugoslav People's Army. While externally similar to the PPSH-41, as well as being able to interchange magazines, the M49 is actually very different in both construction and design. More similar in nature to the Italian Beretta Model 38, the M49 features a one-piece tube receiver which contains the bolt, recoil spring and buffer mechanism.[1] Constructed of machined parts as well as simple tubing, the receiver assembly incorporates a ventilated barrel shroud to protect the operator from being burned during periods of rapid-fire, as well as a simple muzzle break to steady the weapon. (Wikipedia Information :3)