The M10 PDWS combines the muzzle velocity of a standard assault rifle, the automatic capability of a machine gun and the portability of a pistol, using the miniturized rifle round, the 4.8x32mm round for armour penetration. The weapon was designed as a replacment for the M7 SMG and though the M10 is in service, the M7 has yet to be withdrawn. The weapon is made of advance light polymers and titanium with a reinforced compacting buttstock connected by titanium pins which lock out at various positions and fold back into the gun.