“CMMG 30AB20FAB Banshee MK4 300 Blackout 30+1 12.50″ Black Nitride Medium Taper Threaded Barrel, EML 7″ M-LOK Handguards, Black Armor Cerakote Aluminum Picatinny Rail Receiver, CMMG Zeroed Grips” has been added to your cart. View cart