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 .300 BLK in supersonic ammo loadings has evolved into a popular competitor to other intermediate cartridges like 7.62×39. No matter what the application is this BANSHEE is built to fit the bill. – Available in a variety of Cerakote finish options the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPBRACE® to the stylized receivers and EML handguards every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. 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 you’ll always have enough space for those must-have accessories. – Platform: Mk4 – Caliber: .300 BLK – Operating System: Direct Impingement – Barrel Length: 8 – Barrel Twist: 1:7 – Barrel Contour: MT – Barrel Material: 4140CM SBN – Barrel Twist: 1:7 – Muzzle Device: CMMG ZEROED Linear Comp – Muzzle Thread: 5/8 X 24 – Gas Port Location: Pistol – Gas Block: 0.750 Non-Adjustable – Upper Receiver: Billet 6061 T6 Aluminum – Lower Receiver: Mk4 Forged 7075 T6 Aluminum – Hand Guard: CMMG EML7 M-LOK – Finish: Cerakote Standard – Charging Handle: CMMG ZEROED Ambi – Pistol Grip: CMMG ZEROED Pistol Grip – Buffer Type: Carbine – Receiver Extension: CMMG 6 Position Fastback Extension – Stock / Brace: CMMG RipBrace – Trigger Type: ZEROED Drop-In Single Stage – Trigger Guard: CMMG ZEROED Trigger Guard – Safety Selector: CMMG ZEROED 60/90 Degree – Magazine: Magpul 30rd PMAG – Weight: 5.1 lbs – Length: 23.7