Crafted of anodized, hard coated aircraft aluminum, these rails have a proprietary barrel nut that bolts to the rail for a positive lock. Features built in QD sockets.
Please inspect the product for any defects before installation or modification. The rail is not returnable once installed or modified.
Installing a barrel nut on an upper requires a few special tools and a knowledge of the AR15 platform. We recommend to have the rail professionally installed by a qualified gunsmith.