CMMG 30AF20ATNG Banshee Mk4 300 Blackout 30+1 8″ Black Nitride Threaded Barrel, M-LOK Handguard, Tungsten Cerakote Aluminum Receiver w/Picatinny Rail, Black Polymer CMMG RipBrace, CMMG Zeroed Grip

Compact and capable, .300 BLK was designed to be right at home in AR15-pattern firearms like the CMMG Mk4 platform. Originally created for optimum performance in subsonic, suppressed and short-barrel applications. Featuring quick deploy RIPBRACE; EML handguards with full-length M-LOK slots on both sides and the bottom of the handguard as well as M-LOK between the top Picatinny rail sections and Mk4 ZEROED parts. Includes 30rd Magpul PMAG.