SKU: 175361
UPC: 810148625108
MPN: 99A890F-MB
The CMMG 99A890F-MB BANSHEE MkGs 9mm is a purpose-built pistol caliber carbine designed for operators seeking a reliable, modular platform with genuine last-round bolt hold open functionality. Built on CMMG's proven MkGs operating system, this 9mm configuration delivers the ergonomic familiarity of AR controls paired with the efficiency of radial delayed blowback operation, making it an effective choice for defensive training, patrol duty, and close-quarters engagement scenarios where intermediate firepower and precision matter equally.
The BANSHEE MkGs platform features extensive M-LOK mounting slots across the handguard—full-length slots on both sides and bottom, plus M-LOK sections between top picatinny rail intervals—enabling unlimited accessory configuration for optics, lights, and support systems. At 10.1 lbs and 39.7 inches overall length, the carbine balances controllability with practical handling characteristics. The radial delayed blowback system, originally developed for .45 ACP platforms, has been adapted specifically for 9mm ballistics, delivering consistent cycling across standard and +P loads while reducing felt recoil impulse compared to direct blowback alternatives.
This platform serves law enforcement patrol officers, private security professionals, and serious sport shooters who value caliber flexibility without sacrificing operating system reliability. The MkGs design provides immediate action transitions familiar to AR-pattern users, while 9mm ammunition offers lower cost-per-round and manageable recoil for precision work or training volume. The last-round bolt hold open—a critical feature often absent from competing pistol caliber carbines—enables immediate load status confirmation and tactical reloading discipline.
The BANSHEE MkGs occupies a distinct segment between full-size rifles and subgun platforms, delivering carbine capability in a package that handles like an enhanced defensive rifle. For teams and individuals prioritizing modular systems with genuine mechanical reliability and mil-spec ergonomics in 9mm, this configuration eliminates compromise between build quality and operational flexibility.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
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