M3 Submachine Gun

The Firearm Guy is at the range with a .45 ACP M3 Submachine Gun, also known as a Grease Gun. The M3 is also available in 9mm.

M3 Submachine Gun Specs:

  • Cartridge:
    • .45 ACP (11.43×23 mm)
    • 9×19mm Parabellum
  • Action: Blowback, open bolt
  • Rate of fire: 450 rounds/min cyclic
  • Muzzle velocity: 920 ft/s (280 m/s)
  • Effective firing range: Sights fixed to 100 yards (91 m)[6]
  • Feed system: 30-round detachable box magazine
  • Sights: Fixed rear peep sight and blade foresight, calibrated to 100 yards for caliber .45 M1911 ball ammunition
  • Weight:
  • M3 (empty): 8.15 lb (3.70 kg)
  • M3A1 (empty): 7.95 lb (3.61 kg)
  • Length: 29.8 in (760 mm) stock extended / 22.8 in (579.1 mm) stock collapsed
  • Barrel length: 8 in (203.2 mm)