The CMMG Banshee 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. 5.7x28mm has quickly become the personal defense weapon caliber of choice for many.

CMMG Banshee MK57 5.7 X 28 8" Barrel 20-Rounds - $1200 The Banshee MK57 utilizes the radial delayed blowback operating system, which effectively reduces felt recoil and enhances the firearm's reliability. The 8" barrel, constructed from 4140CM steel with a …

Jul 27, 2018 · CMMG’s Mk57 BANSHEE comes with two buffer weights: a standard and a lightweight. Use the standard weight for 40 grain ammo and most suppressed use, and the lightweight version for 27 and 28 grain ammo and subsonic fodder.

Engineered to perfection and chambered in 5.7 x 28 mm, this cutting edge firearm deploys an 8 inches barrel to unlock the true potential of the 5.7 x 28 mm round, rendering it an ideal close-range personal defense caliber.

The CMMG Banshee MK57 returns with expanded caliber options, now including the potent 5.7x28mm. This model of the Banshee AR-15 pistol is designed for enjoyment and performance, featuring a high-quality 4140 chrome moly steel barrel known for its durability and accuracy.

Experience the next level of performance with the CMMG Banshee MK57, setting new standards in compact firepower and versatility. Engineered for the fast and versatile 5.7x28mm cartridge, these pistols utilize CMMG's MK57 lower receiver compatible with …

Chambered in 5.7x28mm this Mk57™ BANSHEE™ utilizes an 8” barrel to maximize the full potential of the 5.7x28mm round as a close-range personal defense caliber. Built on the Mk57 platform, this BANSHEE accepts FN®* Five-seveN®* pattern magazines and features an intuitive oversized mag release.

Apr 2, 2019 · CMMG is making the Banshee in 5.7x28 mm. The Five-Point-Seven cartridge came about back in the late ’80s when NATO issued a call for a new item, the Personal Defense Weapon. That firearm was...

Chambered in 5.7x28mm this Mk57™ BANSHEE™ utilizes an 8” barrel to maximize the full potential of the 5.7x28mm round as a close-range personal defense caliber. Built on the Mk57 platform, this BANSHEE accepts FN®* Five-seveN®* pattern magazines and features an intuitive oversized mag release.