CMMG Dissent Upper Group 5.7x28 6.5" - CMMG 57BA8AEHCA

Complete upper receiver assembly chambered in 5.7x28mm with 6.5" barrel, designed for AR-15 platform rifles. Includes bolt carrier group and Picatinny rail end plate; compatible with Mk4/mil-spec AR-15 lower receivers or CMMG Mk57 lower receiver.