Get the look of a Russian sidefolder stock without the hassle of a complete rebuild on your gun! The MA-5100 Triangle Stock bolts to any standard 10-32 bolt pattern stock adapter or hinge, such as those offered by Stormwerkz, ACE Rifle Stocks, and DPH Arms. It is easily adapted to any AK, and can even be mounted to a Yugo PAP pistol by simply drilling and tapping two 10-32 holes in the rear trunnion (make sure your pistol is registered as an SBR before doing this.) Made of 6061 aluminum that is bead blasted and anodizied black, the stock weighs 15 ounces, and with a hinge installed will have the exact length of a true Russian or Bulgarian sidefolder stock. The rear of the stock has a machined rib pattern to give a good grip on the shoulder, and with the use of a hinge it can be configured to fold left or right. The MA-5100 Triangle Stock comes with the stock, two 10-32 bolts and washers, and also can be purchased with a Stormwerkz manufactured hinge assembly. The Triangle Stock is 8.5" long, hinge adds about 0.625" to the length when installed. Overall LOP (Length Of Pull from buttplate to face of trigger) with Triangle Stock and Stormwerkz Hinge installed is 12.25", exactly the same LOP as a real Russian or Bulgarian Sidefolder AK.