Yup. I've got two. They work just fine. They don't have 6 year battery life but do have 1000 hour (about 40 day) battery life. As long as you turn it off when you're done it'll last a while. Ran one a .308 bolt gun, and another on a 9mm carbine. Both have held up just fine over the last 1-2 years. They're not fancy but for the money they beat many other lower cost options. I still prefer the Holosun or Primary Arms ADS for their 50k hour battery life for my go to rifles but for guns that are just for occasional competition use or range use I have no problem with it. I just want instant on or all the time on with a gun I may grab for SHTF and spent a bit more on the Holosun/PAADS for a few of my guns.