German Maschinenpistole 18,I a.k.a. MP18,I
The MP18,I, the first practical submachine gun, weighed 9.31 lbs and had an overall length of 32 inches, utilizing a 32-round drum magazine. Its open-bolt operation and side-mounted magazine created significant torque, requiring specific handling techniques. While recoil from the 9x19mm cartridge was minimal, the heavy bolt mass hindered precision fire, especially with its 200m maximum sight.









