CMMG Dissent Mk4 AR-15 Upper Receiver Assembly .22 ARC 16.1" Barrel

This CMMG AR-15 Dissent Mk4 Upper Receiver Assembly is designed to pair with any standard AR15 pattern lower group.Utilizing our patent pending direct impingement Compact Action, DISSENT upper groups house the entire action and recoil assembly in the upper receiver resulting in less bulk and length than traditional AR pistols. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. Direct impingement DISSENTS come equipped with a left side charger standard. Harness the capability of 22 ARC in this uniquely designed Dissent upper. Available in several different finishes, all CMMG Upper Groups come complete with bolt carrier group and ZEROED accessories. The 22 ARC is the result of careful and meticulous design, following the same proven methodology as the highly acclaimed 6mm ARC. The cartridge and chamber were designed concurrently by Hornady to ensure consistent and repeatable function while producing 22-250 performance from the AR-15 platform. 22 ARC barrels feature an optimal 1:7 twist rate to better stabilize the heaviest 22 caliber bullets. Features ZEROED Muzzle Brake Side Charging Adjustable gas block