USED CMMG Banshee Mk57 5.7x28mm Pistol with Brace and 20-Round Magazine

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Description

The CMMG Banshee Mk57 is a compact, lightweight platform chambered in the fast-shooting 5.7x28mm cartridge. Built around CMMG’s proprietary Mk57 lower, it accepts FN Five-seveN-pattern magazines and uses CMMG’s Radial Delayed Blowback operating system for manageable recoil and reliable cycling.

This example has a black finish, full-length Picatinny optics rail, ventilated M-LOK handguard, adjustable pistol brace, ambidextrous controls and a compact muzzle device. The short configuration makes it well suited for range use, compact storage and shooters looking for a distinctive personal-defense-style platform without the size and weight of a traditional rifle.

Based on the photographs, it appears to be in very good pre-owned condition, showing only minor handling marks. One 20-round magazine is included

Specifications

Specification	Details
Manufacturer	CMMG
Model	Banshee Mk57
Caliber	5.7x28mm
Action	Semi-Automatic
Operating System	CMMG Radial Delayed Blowback
Platform	Mk57
Barrel Length	Short-barrel configuration; exact length not confirmed
Barrel Twist	Typically 1:9
Muzzle Threads	Typically 1/2x28
Muzzle Device	Compact muzzle device
Upper Receiver	Billet Aluminum
Lower Receiver	Mk57 Aluminum Receiver
Handguard	Free-Floating M-LOK
Optics Mount	Full-Length Picatinny Rail
Controls	Ambidextrous Charging Handle and Safety
Brace	Adjustable Pistol Brace
Magazine Pattern	FN Five-seveN Pattern
Magazine Capacity	20 Rounds
Finish	Black
Condition	Very Good Pre-Owned
Included	One 20-Round Magazine
Serial Number	BDB02552