The CMMG Dissent Mk4 AR-15 Upper in .22 ARC features innovative design elements intended to maximize performance and ease of use. This complete upper receiver assembly includes CMMG's patented Compact Action system, offering an integrated recoil assembly and side-charging controls.
Includes adjustable 0.750" gas block for customization
Constructed from 7075-T6 aluminum with a Cerakote finish, the upper also includes a 1913 Picatinny rear end plate for accessory adaptability. All essential components for pairing with a compatible AR-15 lower receiver are included.