Description Taking into account body mechanics & ergonomics considerations the AFG provides a forward grip/index point that reduces shooter fatigue & enhances weapon point control. Slim line design & small size allows for compatibility with a wide variety of rail systems rails covers & accessory mounts. 3-piece design w/interchangeable finger shelf that allows for a flat âA1-styleâ surface or an âA2-styleâ finger nub depending on shooter preference. Mounts on standard 1913 Picatinny rails. All mounting hardware included