The MOE SL Hand Guard for AR15/M4 firearms with carbine-length gas system and A2 font 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 U.S.A. FEATURES: 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 SPECIFICATIONS: MOE SL Hand Guard, Carbine-Length Weight: 6.7 oz. Length, maximum: 8.9 in. Width, maximum: 1.8 in. Height: 2.4 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 spring-loaded delta ring. *Must be used with the triangular A2 front sight assembly with round retaining cap; other gas blocks are not compatible. Factory sling swivel is not compatible and, if equipped, must be removed from the A2 front sight assembly.