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.