Overview Product Description Cmmg Dissent, Mk4, Complete Upper Receiver, 300 Blackout, 10.5" Threaded Barrel, 5/8x24, Cmmg Zeroed Linear Compensator, Cerakote Finish, Charcoal Green, M-lok Free Float Handguard, Fits Ar-15 Lower Receiver, Includes 1913 Picatinny Rail End Plate 30bc239-cg Product Videos Custom Field Product Reviews