The MOE SL Hand Guard, Carbine-Length AR15/M4 for firearms with carbine-length gas systems and an A2 front sight* provides modular flexibility with M-LOK accessory slots in a lightweight, sleek, cost-effective design. Designed with versatility in mind, M-LOK slots at the two, six, and ten o'clock positions allow the attachment of optional Picatinny rail sections and other direct-attach M-LOK accessories for the mounting of tactical lights, slings, grips, etc. Reinforced, heat-resistant polymer construction provides operational durability without the weight and expense of an aluminum rail hand guard. A large front extension and lower lip protects the user from the hot front sight assembly and maximizes useable hand guard length. Made in the USA. Product Specifications Platform: AR10, AR15, M4 Length, max: 8.9 in. Weight: 6.7 oz. Width: 1.8 in. Compatibility: Firearms with carbine-length gas systems and an A2 front sight. Easy to install utilizing existing delta ring and round front hand guard retaining cap with A2 front sight assembly*. Height: 2.4 in. Length, mounting: 6.6 in. NOTE: The MOE SL Hand Guard Carbine-Length is a direct replacement for M4 Carbine-type plastic, two-piece hand guards and utilizes the existing round front hand guard retaining cap and rear spring-loaded delta ring. Not compatible with piston operated AR platforms. *Must be used with the triangular A2 front sight assembly, other gas blocks are not compatible. Factory sling swivel is not compatible and, if equipped, must be removed from the A2 front sight assembly.