Ruger MP9 submachine gun with folded buttstock.
Basically, MP9 may be called "improved UZI". Main improvements over the Uzi include following: the blowback operated action is redesigned to be fired from the closed bolt, to increase accuracy; the lower receiver with integral pistol grip is made from Zytel polymer, while the upper receiver is made from stainless steel; the buttstock is redesigned, and is of folding / telescoped design. MP9 submachine gun features three positions safety / fire mode selector with "safe", "semi-auto" and "full-auto" positions, as well as a separate firing pin block to increase safety. The quickly detachable barrel is loaded with spring to cushion the impact of the bolt on closure. The cocking handle is located at the top of the receiver.
Ruger MP9 submachine gun with buttstock in combat position.
Caliber: 9x19mm Luger/Para
Weight: 3 kg empty
Length (stock closed/open): 376 / 556 mm
Barrel length: 173 mm
Rate of fire: 550-650 rounds per minute
Magazine capacity: 32 rounds
Effective range: 50-100 meters