Specifically designed and manufactured to give a 100% secure fit that does not restrict barrel movement. The GX6 incorporates the world renowned "side by side" rails, mounts on to the front sight of the weapon with a floating fore grip to provide a six rail system, compliant with MIL-STD 1913. The GX6 has been designed to fulfil the increasing demand for weapon mounted optical and laser devices. This product is of superb quality and with a secure, non-movable rail system; the GX6 is the Ultimate weapon Accessory, ensuring maximum accuracy and stability during the toughest workout of your weapon.