M3 Grease Gun
- Distribution: Variable; intended for use by armored forces because of their short length. Unlikely to be found in a ground infantry unit.
- Caliber: cal. .45 ACP
- Feeding: 30 round detachable box magazine
- Weight: 8.0 lbs.
- Length: 29.8 in.with stock extended
- Range: 75 yds (effective)
- Action: Blowback
- Rate of fire: 350-450 rpm
- Cooling: Air
- Use: Introduced to supplement or replace the heavier and more expensive M1, and designed for use in close in support against enemy AT infantry teams. Issued to tank crews because a longer weapon is difficult to shift and store inside a turret or hull.
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