Magpul MAG424-BLK MOE M-LOK Carbine Hand Guard for AR15/M4 carbine-length gas systems. Supports MOE M-LOK slots at 2, 6, and 10 o'clock and accepts optional 1913 Picatinny rail sections for additional accessories. Constructed from heat-resistant polymer with an integral riveted aluminum heat shield. Features front extensions and a lower lip to protect against heat from the front sight, and installation uses the existing delta ring with a round or triangular front hand guard retaining cap. Top rear relief provides clearance for many optic mounts. Proudly made in the USA.