CMMG Banshee Mk4 9mm 5-inch Pistol Brace 30+1

Built on CMMG’s proven Mk4 AR‑15 platform, the Banshee Mk4 is a compact 9mm semi‑automatic that shares the AR manual of arms and accepts CMMG 9mm AR conversion magazines. The design emphasizes compact handling with a 5-inch threaded barrel and a quick-deploying RIPBRACE pistol brace. The EML handguard includes full-length M-LOK slots on both sides and the bottom, plus M-LOK sections between top Picatinny rail segments for accessory mounting. This configuration ships with one magazine and a Cerakote midnight bronze finish.

Key Specifications

• The caliber is 9mm.
• The barrel length is 5 inches.
• The capacity is 30 + 1.
• The overall length is 20.80 inches.
• The weight is approximately 5 lbs.
• The action is Semi-Auto.
• The stock type is a Pistol Brace.
• The barrel is Threaded.
• The finish is Cerakote.
• The color is Midnight Bronze.

Compact and purposeful, the Banshee Mk4 offers an AR‑style manual of arms in a short‑barrel 9mm package suitable for range training, competition drills, and everyday carry systems that accept pistol‑braced configurations. Its threaded barrel, modular handguard, and ambidextrous controls provide a flexible platform for shooters who value a small footprint without sacrificing the familiarity of AR ergonomics.

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