The MOE SL Hand Guard for AR15/M4 firearms with carbine-length gas system and A2 front sight* provides modular flexibility with M-LOKA(R) 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 U.S.A. Narrow design replaces bulky M4 Carbine-type plastic hand guards Easy to install utilizing existing delta ring and round front hand guard retaining cap with A2 front sight assembly* Slots at the two, six, and ten o'clock positions for mounting direct-attach M-LOK accessories or M-LOK 1913 Picatinny rail sections Reinforced, heat-resistant polymer construction Integral riveted aluminum heat shield Front lip and long side extensions shields hand from hot sight assembly 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. Specifications Weight: 6.7 oz. Length, maximum: 8.9 in. Length, mounting: 6.6 in. Width, maximum: 1.8 in. Height: 2.4 in.