CMMG UPPER GROUP, RESOLUTE, MkG, 45 ACP, 16.1″

UPPER GROUP, RESOLUTE, MkG, 45 ACP, 16.1″

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. Available in seven different Cerakote finishes, all CMMG® Upper Groups come complete with bolt carrier group and ZEROED™ accessories including:

ZEROED AR15 Polymer Dust Cover

ZEROED AR15 Ambi Charging Handle

ZEROED Muzzle Brake 45ACP

MkG Radial Delayed Blowback™ Operating System

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.

MkG .45 ACP uppers are only designed for use with MkG lowers, other manufacturers’ lowers may work but CMMG® cannot guarantee function.

Lifetime Quality Guarantee

We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.