When it comes to size this CMMG® Mk47 is the middle child of the bunch. With a 12.5 barrel it’s the longest configuration in the BANSHEE series offering the right blend between maneuverability and ballistic performance. The Mk47 platform is CMMG’s mid-size AR platform utilizing more robust receivers and components like our PowerBolt Technology without adding unneeded bulkiness. If the magwell on the Mk47s looks ready to take AK-pattern magazines you would be right. Since AK magazines were designed around the 7.62x39mm cartridge we figured if it’s not broke why fix it? - Platform Mk47 - Caliber 7.62x39mm - Operating System Direct Impingement - Barrel Length 12.5 - Barrel Twist 1:10 - Barrel Contour MT - Barrel Material 4140CM SBN - Barrel Twist 1:10 - Muzzle Device CMMG ZEROED Linear Compensator - Muzzle Thread 5/8 x 24 - Gas Port Location Carbine - Gas Block 0.750 Non-Adjustable - Upper Receiver Billet 7075 T6 Aluminum - Lower Receiver Mk47 Billet 7075 T6 Aluminum - Hand Guard CMMG EML11 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 Mil-Spec Single Stage - Trigger Guard Integrated - Safety Selector CMMG ZEROED 60/90 Degree - Magazine Magpul 30rd PMAG - Weight 6.5 lbs - Length 28.7