CMMG Banshee MK4 9MM | 8″ Barrel | Midnight Bronze

The CMMG Banshee MK4 is a compact AR-pattern pistol built on CMMG’s Mk4 lower and configured for pistol-caliber use. This variant features an 8-inch threaded barrel, an EML11 M-LOK handguard, and a RIP Brace for stabilized handling. A low-profile red-dot on a Picatinny footprint pairs well; consider the Vortex Sparc AR as an optic option under $1000 for robust, all-day use.

Common uses include precision range training and pistol-caliber carbine competition where compact handling and AR ergonomics are desired.

Product Specifications

• The manufacturer is CMMG.
• The model is listed as the Banshee MK4 9MM.
• The manufacturer part number is 94A860F-MB.
• The UPC is 840442503857.
• The caliber requires review due to conflicting source data; see notes for details and verification steps (Requires review).
• The action is listed as Semi-Auto.
• The barrel length is 8 inches.
• The magazine capacity requires review due to conflicting source values (’30’ vs ’30 + 1′); see notes (Requires review).
• The overall length is 23.70 inches.
• The weight requires review due to conflicting source values (’92 ounces’ vs ‘5 pounds’); see notes (Requires review).
• The handguard is the CMMG EML11 M-LOK.
• The stock/brace is the RIP Brace (pistol brace).
• The barrel material is specified as 4140 CM.
• The muzzle is threaded with 5/8×24″ threads.
• The finish/color is listed as Midnight Bronze Cerakote.

This AR-format pistol balances compact dimensions with accessory compatibility: the full-length Picatinny top rail and M-LOK handguard accept optics, lights, and mounts commonly used on modern AR-platform pistols. The 8″ threaded barrel provides options for muzzle devices or suppressor-hosting components where legal. The Banshee MK4 is built for shooters who value AR ergonomics in a compact PCC configuration and appreciate a finished, ready-to-outfit platform.

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