CMMG Dissent Mk4 Upper Group, 300 Blackout/6.5 Blackout - CMMG 30B0E67HCA

This is an upper receiver assembly for AR-15 platform rifles chambered in 300 Blackout or 6.5 Blackout, designed for use with CMMG Dissent Mk4 lowers or standard AR-15 lower receivers. The upper group features a compact PDW configuration and is available in seven different Cerakote finish options for customization.