CMMG Banshee Mk4 Pistol 5.56 NATO 12.5in 30rd Bronze

About this product

The CMMG Banshee Mk4 is an AR-style pistol built to deliver carbine-like ballistics in a compact package. Chambered for .223 Rem/5.56 NATO and fitted with a 12.5-inch barrel, this model pairs a high-capacity 30-round magazine with a deployable RIP Brace for controlled handling. The Mk4 platform offers modularity with full-length M-LOK slots and a Picatinny optic footprint for versatile accessory mounting.

Key Specifications

• The caliber is listed as .223 REM/5.56 NATO.
• The barrel length is 12.5 inches.
• The magazine capacity is 30 rounds.
• The action type is Semi-Auto.
• The listed weight is 92 ounces.
• The handguard is the CMMG EML11 M-LOK with full-length M-LOK slots.
• The stock type is a RIP Brace (pistol brace).
• The optic footprint is Picatinny.
• The barrel material is listed as 4140 CM steel.
• The muzzle is threaded 1/2-28″ and ships with a zeroed linear muzzle device.

The Banshee Mk4 balances compact handling and modular capability for shooters who want an AR-platform pistol that is accessory-ready and purpose-built for close-quarters use or as a compact range gun. Its M-LOK handguard, ambidextrous controls, and CMMG zeroed trigger provide a practical foundation for optics and other accessories while the bronze finish gives it a distinctive, durable appearance.

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