CMMG Banshee MkGs 9mm | 8″ Barrel | 99A520FTNG

The CMMG Banshee MkGs is a compact 9mm AR-style pistol built around the MkGs platform that accepts double-stack Glock-pattern magazines. This configuration features an 8-inch threaded barrel with a fixed ejector radial-delayed blowback system and ships with a single 33-round Glock-style magazine. For a robust, practical optic that pairs well with the platform, consider a Trijicon MRO or a similar tube-style red dot under $1000; the Banshee’s Picatinny optic footprint and full-length top rail accommodate such red dots directly.

Product Specifications

• The manufacturer is CMMG.
• The model is Banshee MkGs.
• The manufacturer part number is 99A520FTNG.
• The caliber is 9mm Luger.
• The action is Semi-Auto.
• The barrel measures 8 inches and is threaded for accessories.
• The muzzle thread specification is 1/2-28.
• The magazine capacity is 33 + 1.
• The package includes one 33rd Glock-style magazine.
• The handguard is a CMMG EML7 M-LOK unit.
• The upper receiver is Billet 6061 T6 Aluminum.
• The lower receiver is Forged 7075 T6 Aluminum.
• The finish is Tungsten Cerakote.
• The pistol ships with a CMMG RipBrace (brace)
• The optic footprint is Picatinny.
• The UPC is 840442504861.

The Banshee MkGs is well suited to competitive pistol-caliber carbine (PCC) divisions and deliberate range training, where magazine capacity and low-recoil 9mm performance matter. Its compact overall length and threaded barrel also make it a flexible platform for users who want an AR-format pistol that accepts common Glock-pattern magazines. Built with familiar AR ergonomics and CMMG’s MkGs operating system, this package delivers a dependable, easy-to-configure platform for informed shooters who prioritize modularity and proven components.

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