CMMG BANSHEE Mk4 MK57 5.7x28mm FN Blue/Black Pistol

Description

Product Overview

The CMMG BANSHEE Mk4 MK57 is a compact 5.7x28mm FN AR-pattern pistol built around CMMG’s Radial Delayed Blowback operating system. Its 5-inch threaded barrel and compact RIPBRACE make it easy to handle in confined spaces, while the reduced bolt weight and delayed operation provide a softer recoil impulse than traditional straight-blowback designs. The EML4 handguard provides M-LOK slots at the three, six, and nine o’clock positions, a full-length Picatinny top rail, and an integrated handstop for practical accessory configuration. The Mk4 lower accepts CMMG 5.7x28mm AR conversion magazines and includes standard AR-style controls.

Key Features

• 5.7x28mm FN chambering delivers low-recoil performance in a compact AR-pattern pistol
• Radial Delayed Blowback operating system reduces bolt weight and softens the recoil impulse
• 5-inch threaded barrel supports compatible muzzle devices and suppressors
• RIPBRACE provides a compact stabilizing brace configuration
• EML4 handguard features M-LOK accessory slots and a full-length Picatinny top rail
• Optic-ready receiver configuration supports a wide range of aiming accessories

The CMMG BANSHEE Mk4 MK57 combines compact handling, AR-style controls, and efficient 5.7x28mm FN performance in a highly configurable pistol platform.