15'' Mount Rail Keymod Scope Mounts Replacement  Picatinny Float Free For Hunting Optics & Lasers Handguard<br />Description:<br /><br />Free float design attaches directly to the receiver without touching the barrel or impacting barrel harmonics.<br /><br />Universal keymod rail system allows for modular attachment of picatinny accessories such as bipods， grips， lights， or sights.<br /><br />The handguard includes the aluminum barrel nut， castle nut， and anti-rotation screw.<br /><br />Lightweight， low profile design with a 1.35 inch inside diameter; aircraft grade 6061 aluminum construction， 15 inches in total length.