CMMG Banshee MK4 5.7x28mm 8″ 32+1 Black Armor

About this product

The CMMG Banshee MK4 is a compact AR-style pistol built on CMMG’s Mk4 platform and configured for a high-capacity format. This model is presented with an 8-inch medium taper threaded barrel, a Black Armor Cerakote aluminum Picatinny rail receiver, and CMMG ZEROED ergonomics and controls. It ships configured with a 32-round magazine and a suite of ZEROED components for consistent handling.

Key Specifications

• The barrel measures 8 inches for a compact footprint.
• The twist rate is 1:9 for stabilization of compatible projectiles.
• The action is Semi-Auto to match AR-style operation.
• The capacity is 32+1 rounds using the included magazine.
• The barrel material is 4140CM SBN.
• The muzzle thread is 1/2 x 28 for common muzzle devices.
• The upper receiver is billet 6061 T6 aluminum.
• The lower receiver is Mk4 forged 7075 T6 aluminum.
• The finish is Cerakote Standard.
• The overall length is 23.7 inches.

Designed for shooters who value a compact, modular AR platform, the Banshee MK4 pairs a short, threaded barrel with CMMG’s ZEROED controls and a full-featured Picatinny receiver for straightforward customization. Its high-capacity magazine configuration and compact handling make it a practical option for users prioritizing a small footprint without sacrificing modularity and ergonomics.

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