In addition, the rail’s slim profile keeps your platform maneuverable and has two integral anti-rotation QD sling sockets for your favorite shooting sling. This allows you to mount your favorite accessories in various orientations, including at a 45-degree angle. The Midwest Industries combat rail is constructed with a unique one-piece free-float design with seven mounting surfaces. The rail is 100 percent made in the USA and is covered by Midwest Industry’s no-nonsense lifetime warranty. The new Midwest Industries M-LOK rail has an innovative design that allows you to mount and orient accessories in various positions. 1x Midwest Industries M-LOK Combat Rail.*Due to the many different dimensions in BILLET UPPER RECEIVERS on the market, please contact your billet upper receiver manufacture to insure fit of this handguard. Finish: Mil-Spec Type III Hardcoat Anodized.Mounting hardware and barrel nut wrench included.M-LOK slots on seven sides allow user to mount accessories at 45-degree.Two integral anti-rotation QD sling sockets.Continuous MIL-STD 1913 Picatinny top rail.One piece free-float design with slim profile.