The CMMG Dissent Mk4 AR-15 Compatible Upper in 22 ARC offers a modern, bufferless design that integrates the operating system and recoil assembly within the upper receiver. Compatible with standard AR-15 lowers, it delivers improved handling with a compact, robust platform. This upper assembly features a precision 16.1-inch barrel and a host of advanced components for versatile, reliable performance.
Adjustable 0.750" gas block and reversible side charging handle
This complete upper group includes a CMMG ZEROED muzzle brake and a 1913 Picatinny rear end plate, enabling flexible accessory attachment. Designed for the Hornady 22 ARC cartridge, it provides AR-15 compatibility in an innovative, adaptable format.