The Tekko Metal AR Rail System replaces the plastic factory handguard in minutes and requires no gunsmithing or special installation tools. Drop in, screwless, installation means no permanent alterations need be made to the rifle. The unit is held in place by the Delta ring and handguard cap. Four MIL-STD Picatinny Rails provide secure mounting for rail attachments and accessories such as vertical grips, lights, lasers, bipods and other rail mounted kit. Monolithic style continuous top rail eliminates the gap between the receiver and rail. Four QD mounts, two on each side for push button sling swivels. Lightweight 6061 aluminum construction is Type 3 hard coat anodized. No Gunsmithing, drop in screwless installation, held in place by Delta ring and handguard cap with no permanent alterations to rifle 4 MIL-STD 1913 Picatinny Rails provide a secure platform for mounting Picatinny accessories 4 QD mounts, two on each side for push button sling swivels Monolithic style continuous top rail Lightweight 6061 aluminum construction is hard coat anodizedEoe 7" carbine handguard replacement Weight: 12oz Height: 2.42" Width: 2.29" Length: 7.25"