Attach most M16/M4 style braces or stocks to your favorite Type 3 Milled Receiver AK-47 clone! JMAC's M4-AK Stock/Brace adapter is very unique in the way it mounts to the rifle! JMAC's has 2 anchors with large bolts and is INCREDIBLY STRONG! NO PERMANENT MODIFICATIONS required!, the upper tang remains on the receiver, the lower tang is removed (not cut off) and JMAC'shardware used in place of it! If you want to switch back all you have to do is re-install the lower tang. Why buy JMAC's? Its incredibly strong, machined from 7075 and hardcoat anodized, offers an optimal cheek wield for irons and red dots, has built in QD sling points 7075 Aluminum Mfg: Jmac Customs