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CMMG BANSHEE MK57 | 5.7x28mm | 8 Barrel
MSRP:$1,624.95
Your Price:$1,490.00
CMMG BANSHEE MK57 chambered in 5.7x28mm with an 8 barrel, radial-delayed blowback operation, and M-LOK EML7 handguard. Accepts FN Five-seveN pattern magazines and is built for compact range and competition use.
The CMMG BANSHEE MK57 is a compact AR-style pistol chambered in 5.7x28mm built on the Mk57 platform. It uses a radial delayed blowback operating system, accepts FN Five-seveN pattern magazines, and features a full-length M-LOK compatible handguard for accessories. For a practical optic pairing under $1000, consider a Trijicon MRO red dot for fast target acquisition and robust durability.
This configuration is well-suited to range training and practical competition where low recoil and high magazine capacity are advantages.
Product Specifications
The platform is Mk57.
The caliber is listed as 5.7x28mm.
The operating system is Radial Delayed Blowback.
The barrel length is listed as 8.
The barrel twist is 1:9.
The barrel material is 4140CM SBN.
The barrel contour is MT.
The muzzle device is a CMMG ZEROED Linear Compensator.
The muzzle thread is 1/2 x 28.
The upper receiver is Billet 6061 T6 Aluminum.
The lower receiver is Mk57 Forged 7075 T6 Aluminum.
The hand guard is a CMMG EML7 M-LOK.
The finish is Cerakote.
The magazine supplied is a 20rd Promag.
The overall length is listed as 23.7.
The UPC is 810144728438.
Compact, mechanically robust, and configured for accessory mounting, the BANSHEE MK57 delivers a purpose-built, short-package AR pistol experience. Its compatibility with FN pattern magazines and the Mk57 platform’s features make it an option for shooters prioritizing controllability and modularity on the range or in competition. The CMMG ZEROED controls and EML handguard provide practical ergonomics and mounting flexibility for optics, lights, and other accessories.
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