CMMG Fixed Ejector Upper Group for BANSHEE Mk4 Mk9 Mk17 & MkGs 9mm Luger 8 Barrel Armor Black

Radial delayed blowback was an advancement from straight blowback. Compact action radial delayed blowback was an advancement to the original radial delayed blowback. This (fixed ejector on radial delayed blowback) is a continued advancement bringing new technologies to the original platform. - Combining carbine-like ballistic performance and compact size this 8 BANSHEE upper group is what you need for the ultimate 9mm AR. Not only does this 9mm upper utilize CMMG®'s radial delayed blowback technology but shooters also have a number of lower/magazine pairing options. 9mm Radial Delayed Blowback uppers are designed exclusively to work with CMMG MkGs Mk17 or mil-spec AR15 lowers using our 9mm Conversion Magazines. Available in different Cerakote finishes all CMMG® Upper Groups come complete with bolt carrier group and ZEROED accessories including: - ZEROED Polymer Dust Cover - ZEROED AR15 Ambi Charging Handle - ZEROED Linear Compensator 9mm - Platform Mk4 Mk9 Mk17 MkGs - Caliber 9mm - Operating System Fixed Ejector Radial Delayed Blowback - Barrel Length 8 - Barrel Twist 1:10 - Barrel Contour MT - Barrel Material 4140CM SBN - Barrel Twist 1:10 - Muzzle Device CMMG ZEROED Linear Compensator - Muzzle Thread 1/2 X 28 - Upper Receiver Billet 6061 T6 Aluminum - Hand Guard CMMG EML7 M-LOK - Finish Cerakote Standard - Charging Handle CMMG ZEROED Ambi - Weight 3.0 lbs - Length 16.5