"This thing gets 10 stars from me. I received this about 6-7 years ago as a package deal for a junky airsoft gun I bought in my teenage years. I used it here and there, but not a whole lot as I had a red dot I liked better back then that eventually died because it was cheap garbage. Amazingly, as of the day I write this, my "junky free" red dot is still working, and currently not with an airsoft gun, but on my PTR 91 308 rifle. I tried it out on there almost as a joke to see if it would work (I'm saving money for a aimpoint atm) but after over 1000 rounds of 150 grain FMJ this thing still sits tight as can be on the rail, has absorbed all recoil and still holds a dead zero. If this thing can handle 308, it can handle airsoft. I honestly am in shock, I figured I would fire 10 rounds and it would die. Nope, still going strong. This will no doubt be my backup red dot, as I cant sell it for much since its not worth much, but still acts better then some optics ive had that were well over 400. Insane."