A slim ir laser mount for your nightvision. This is made for ATN 410 Spartan but will work for every nvrs that have an external weaver mount for ir illumination. This one i use with a 16x60mm 850 nm focusable laser on 160mw and that one is much moore efficiant then the stock ir that comes with the 410 , i dont know how strong laser you can use but between 160 and 250 would probably go , 160mw is what i am using now but i will try stronger for longer range and illumination in the future