Kriss Vector vs M3 Grease Gun

2009–present

1942–1945

Unknown

Over 680,000

406mm (16 in) stock folded, 620mm (24.4 in) extended

757mm (29.8 in) stock extended / 579mm (22.8 in) stock folded

140mm (5.5 in) SMG, 406mm (16 in) civilian carbine

203mm (8.0 in)

2.7 kg (5.95 lb) .45 ACP, 2.5 kg (5.5 lb) 9mm

3,700g (8.15 lb) empty

13-30 rounds depending on caliber (Glock magazine compatible)

30 rounds

Delayed blowback, closed bolt — Super V recoil mitigation

Blowback, open bolt

Selective fire (safe, semi, 2-round burst, full auto on military models)

Selective fire (semi/full auto)

Flip-up iron sights, full-length MIL-STD-1913 rail

Fixed blade front, flip-up L-type rear (100 and 200 yards)