CMMG Banshee MkGs Pistol | 9mm | 5″ Barrel | SBA3 Brace

The CMMG Banshee MkGs is a compact, pistol-caliber AR-style platform chambered in 9mm with a 5″ barrel and an M-LOK-equipped 4″ handguard for modular accessory mounting. The MkGs platform uses a radial delayed blowback operating system and accepts double-stack Glock-pattern magazines for higher capacity in a compact package. For optics, a 1x red-dot such as the Trijicon MRO pairs well with the platform for fast, close-to-mid-range work while leaving plenty of sight radius for deliberate shots.

Common applications include range training and pistol-caliber carbine (PCC) competition where compact handling and high-capacity Glock-pattern magazines are advantageous.

Product Specifications

• The platform is MkGs.
• The caliber is 9mm.
• The operating system is Radial Delayed Blowback.
• The barrel measures 5 inches.
• The barrel twist is 1:10.
• The barrel contour is MT.
• The barrel material is 4140 CM, SBN.
• The muzzle device is a CMMG ZEROED Linear Compensator.
• The muzzle threads are 1/2 x 28.
• The upper receiver is Billet 6061 T6 Aluminum.
• The lower receiver is MkGs Forged 7075 T6 Aluminum.
• The handguard is a CMMG EML4 M-LOK with full-length top rail.
• The finish is Cerakote Standard.
• The magazine is Glock 33rd.
• The UPC is 810148625078.

This Banshee MkGs emphasizes compact handling and modularity: the short 5″ barrel and M-LOK handguard keep overall length minimal while providing attachment points for lights, offsets and small optics. The radial-delayed blowback system is designed around reliable function with common 9mm loads and the Glock-pattern magazine compatibility simplifies logistics for shooters already using that platform. Its form factor is appropriate for tight-range tactical drills, PCC competition stages, and regular range practice where controllability and high capacity are priorities.

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