The CMMG BNSHE MK4 5.56 AR Pistol is engineered for operators requiring a compact, high-performance direct impingement system. This platform integrates the proven reliability of the AR-15 architecture with enhanced maneuverability, making it suitable for close-quarters engagement or efficient vehicle-borne operations. The 12.5-inch barrel provides a balance of ballistic performance for the 5.56x45mm NATO cartridge while maintaining a reduced footprint.
Key Features
Optimized Barrel Length and Caliber
The 12.5-inch barrel length is selected to optimize the 5.56x45mm NATO cartridge’s ballistic characteristics within a compact form factor. This configuration mitigates overall length without severely compromising terminal performance at relevant distances for an AR pistol application.
Robust Receiver Construction
The BNSHE MK4 platform utilizes forged 7075-T6 aluminum receivers, precisely machined for consistent fit and operational durability. This material choice and manufacturing process ensures the structural integrity required for sustained rigorous use under demanding conditions.
Enhanced Maneuverability
Designed as an AR pistol, this system offers superior handling in confined environments. Its compact nature, complemented by an integrated pistol brace, facilitates rapid deployment and precise weapon manipulation, a critical factor for dynamic operational scenarios.
Effective Muzzle Device
Equipped with a performance-driven muzzle brake, the BNSHE MK4 effectively mitigates felt recoil and muzzle rise. This feature contributes to enhanced shot-to-shot recovery and target re-acquisition speed, optimizing shooter control.
Technical Specifications
Model
CMMG BNSHE MK4
Caliber
5.56x45mm NATO
Barrel Length
12.5 inches
Operating System
Direct Impingement
Receiver Material
Forged 7075-T6 Aluminum
Finish
Hard Coat Anodized
Muzzle Device
Integrated Muzzle Brake
Magazine Capacity
30 rounds (one magazine included)
Pistol Configuration
Integrated Pistol Brace









