Specifications:
Model: Mk57 Banshee
Manufacturer: CMMG Inc.
Chambering: 5.7x28 mm
Action Type: radial-delayed, blowback-operated center-fire pistol
Lower Receiver: 7075-T6 billet aluminum
Upper Receiver: 7075-T6 forged aluminum
Barrel: 5”; threaded 1/2x28 TPI, includes thread protector
Trigger: 5-lb, 7-oz. pull
Finish: Cerakote, Slate Gray
Magazine: 20-round detachable box
Weight: 4 lbs., 9 ozs.
MSRP: $1,550
Additional Reading:
SHOT Show 2018: CMMG Mk4 DTR2 .224 Valkyrie Rifle
Tested: CMMG MK4 Banshee .22 LR Pistol
Tested: CMMG Guard Pistol Caliber Carbines
Tested: CMMG MkW-15 XBE Anvil
![](/media/utajjbtx/screen-shot-2018-11-08-at-102009-am.jpg?width=486&height=274)
![](/media/1dkdcj1s/mk57-left-side.jpg?width=497&height=187)
![](/media/dwahngbx/mk57-operation.jpg?width=437&height=243)
![](/media/2geh35ri/mk57-magazine-release.jpg?width=445&height=291)
![](/media/2wql12j2/mk57-charging-handle.jpg?width=531&height=261)
![](/media/qunhj5qq/mk57-muzzle.jpg?width=254&height=241)
![](/media/3emdc1jl/gear-head-works-stock.jpg?width=268&height=185)