This device is only visible under night-vision device (invisible to the human naked eyes). Use advanced infrared LED that emits 5W powerful infrared 940nm light which is INVISIBLE to the naked eyes.
Slidable Rail System: the Green Beam and White LED Combo is compatible with 1913 Picatinny 21mm width Rail for rifle (Not for Pistol). Slidable Rail System supports you slide the adjustable rail forward and backward freely to find your prefer position.
Slidable Rail System: the Green Beam and White LED Combo is compatible with 1913 Picatinny 21mm width Rail for rifle (Not for Pistol). Slidable Rail System supports you slide the adjustable rail forward and backward freely to find your prefer position.