CMMG AR-15 Resolute Upper Receiver Assembly 45 ACP 16" Barrel

CMMG Upper Group Resolute Fixed Ejector MkG . 45 ACP 16.1in 1-16 Twist 0.578-28 TPI Armor Black. Compact action RDB was an advancement to the original RDB. This (fixed ejector on RDB) is a continued advancement bringing new technologies to the original platform. With over a century of service across the world .45 ACP has been the pistol caliber of choice for many shooters. For anyone looking to complete the ultimate pistol caliber carbine the RESOLUTE Upper Group chambered in .45 ACP is here. Since making its debut on the original .45 ACP MkG platform in 2017 Radial Delayed Blowback has revolutionized pistol caliber ARs across the entire CMMG lineup. As a result of meticulous engineering Radial Delayed Blowback not only addressed some operational concerns with a traditional straight blowback system but it also delivered pistol caliber carbines and personal-defense weapons with softer recoil impulses and lighter weight bolt carrier groups and buffer systems than straight blowback systems could deliver. Check out our CMMG Resources article & video to learn more about what sets Radial Delayed Blowback apart. Specifications for CMMG Resolute MkG .45 ACP 16.1in Upper Group: Manufacturer: CMMG Caliber: .45 ACP Barrel Length: 16.1 in Barrel Twist Rate: 1-16 Threads per Inch: .578x28 Muzzle Device: CMMG Zeroed Muzzle Brake Fabric/Material: Aluminum Gun Rail: M-LOK Weight: 3.7 lb Barrel Material: 4140 Chrome Moly Vanadium Magazine Included: No Package Contents: CMMG Resolute MkG .45 ACP 16.1in Upper Group CMMG 45B690F-AB: Upper Group Resolute Fixed Ejector MkG . 45 ACP 16.1in 1-16 Twist 0.578-28 TPI Armor Black