Calico 960 Country USA Type Submachine gun Manufacturer Calico Introduction 1990 Specifications Weight 2.17 kg (Empty) Length 330 mm (Barrel), 835 mm (Stock extended) Barrel length 647 (Stock retracted) Cartridge 9x19mm Parabellum Action Roller-delayed blowback Rate of fire 750 rounds/min Feed system 50/100-round helical magazine Sights Iron sights, can have various sights mounted

The Calico M960 9 mm is a semi-automatic gun (fully automatic versions are available to authorized law enforcement and military, or civilians with proper BATF forms), manufactured by Calico Light Weapons Systems. Its unique feature is its high-capacity, cylindrical, helical-feed magazine. This method allows magazine capacities of 50 and 100 rounds in a relatively small space.