Aero’s Enhanced M-LOK (EM) Handguard provides a lightweight free-float design for your custom AR15/M4 build. The M-LOK system allows advanced modularity past the current 1913 picatinny rail system. Machined to mil-spec dimensions and engineered to perfection this hand-guard eliminates bulk while retaining strength and stability. It features built-in anti-rotation tabs scalloped rails quick disconnect sling socket at the 3 6 and 9 o’clock positions and additional milling. *Note – It is not compatible with the M5 .308/M5E1 platform