Ultimate Arms Gear Set of 2 Weaver/Picatinny Rails To Screw into Polymer/Wood Weapon Stocks AK47, AK-47, AK74, AK-74, VZ58, VZ-58, WASR Rifle Set of 2. Black anodized aircraft grade aluminum Accepts all standard Weaver / Picatinny 1913 accessories Easy Mount to Many Polymer, Wood & Syntethic Parts of Guns, Shotguns, Rifles and Pistols.