• Replaces standard M4 Carbine-type hand guards • Easy to install utilizing existing front hand guard retaining cap and delta ring • MIL-STD-1913 Picatinny rail mounting slots at the two, six, and ten o’clock positions • Reinforced, heat-resistant polymer construction • Integral aluminum heat shield • Front lip and side extensions, shields hand from hot gas block Color: Black (BLK), Flat Dark Earth (FDE), Foliage Green (FG), Olive Drab (OD)