MAGPUL MOE M-LOK HAND GUARD, MID-LENGTH – AR15/M4 - TWO COLORS AVAILABLE: BLACK AND FDEThe Magpul MOE M LOK Hand Guard (Magpul Original Equipment) for AR15 M4 rifles with mid length gas systems combines the light weight of a standard hand guard with modular flexibility. Designed with versatility in mind, M LOK slots at the two, six, and ten o'clock positions allow the attachment of optional 1913 Picatinny rail sections and other M LOK accessories for the direct mounting of tactical lights, slings, grips, etc. Reinforced, heat resistant