The 9mm and .45 ACP Banshees use CMMG's patent-pending Radial Delayed Blowback operating system and feed from factory Glock magazines. The advantage of using the Radial Delayed Blowback system over the standard straight blowback design is that it enables CMMG to use a lighter buffer and carrier. The Banshee in 9mm and .45 ACP are both easily handled thanks to a reduction in weight. The Banshee built on the MkG platform is intended to employ the Glock 21 and 30 .45 ACP magazines. The CMMG MkGs is designed to take Glock small-frame double-stack magazines, as those found in the Glock 17, 19, and 26. The barrel of the MkG is threaded .578-28 for common 45 ACP muzzle devices. Only the charging handle and selector switch are ambidextrous. There are numerous combinations with varied barrel lengths and furniture options available in the series 100, 200, and 300. Standard features include the quick-deploying RipBrace, styled receivers and EML handguards, full-length M-LOK slots on the bottom of the handguard and both sides, as well as M-LOK between the top Picatinny rail sections. Every BANSHEE is specifically designed to serve as the ideal personal defense solution.