CMMG Pistol Banshee MK57 Semi-Auto 5.7x28mm 8" Barrel (1)-20Rd Magazine No Sights Polymer Grips Bronze Finish

FN Five-seveN pistol owners can rejoice, theres a new way to put your magazines to use. 5.7x28mm has quickly become the personal defense weapon caliber of choice for many. Offering near .22 LR levels of recoil and performance that rivals 5.56mm at close range its no surprise why. Even with a 5 barrel this BANSHEE sacrifices nothing when it comes to features. The Mk57 platform is designed to use FN Five-seveN pattern magazines and still offers the full range of AR15 operational features like last round bolt hold open and can utilize standard AR15 triggers. Available in a range of cerakote finishes, the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the stylized receivers and EML handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. EML7 handguards feature M-LOK slots at 3, 6, & 9 oclock positions and a full length picatinny top rail for accessories as well as an integrated handstop.
Mk57 ZEROED parts and accessories – Quality comes standard
The AR platform is well known for its capability for customization but picking the right parts doesn’t have to be a nightmare of homework. The full kit of ZEROED parts and accessories are made here in the USA with quality and attention to detail that is second to none and each BANSHEE comes equipped with a slew of ZEROED parts standard, including:

ZEROED Pistol Grip

ZEROED 60°/90° Ambi Safety

ZEROED AR15 Ambi Charging Handle

ZEROED AR15 Bolt Catch

ZEROED AR15 Polymer Dust Cover

ZEROED Linear Compensator 5.56mm

Platform Mk57
Caliber 5.7x28mm
Operating System Radial Delayed Blowback
Barrel Length 8
Barrel Twist 1:9
Barrel Contour Mt
Barrel Material 4140cm, Sbn
Barrel Twist 1:9
Muzzle Device Cmmg Zeroed Linear Compensator
Muzzle Thread 1/2 X 28
Gas Port Location N/a
Gas Block N/a
Upper Receive R Billet 6061 T6 Aluminum
Lower Receiver Mk57 Forged 7075 T6 Aluminum
Hand Guard Cmmg Eml7 M-lok
Finish Cerakote Standard
Charging Handle Cmmg Zeroed Ambi
Pistol Grip Cmmg Zeroed Pistol Grip
Buffer Type Carbine
Receiver Extension Cmmg 6 Position Fastback Extension
Stock / Brace: None
Trigger Type Mil-spec Single Stage
Trigger Guard Integrated
Safety Selector Cmmg Zeroed 60/90 Degree
Magazine Fn® Five-seven™ 20rd
Weight 5.2 Lbs
Length 23.7"