"I got this for my pistol.
I think I was lucky, because when I mounted this scope on my pistol it was already dead accurate so I did not need to adjust it at all.
Mind that this scope is HUGE. It actually looks really good on my gun, but I don't think it will look good on every gun.
It works perfectly in performance wise though.
Being able to aim with both eyes open is a great benefit.
Two different colors of light are awesome.
Mounts easily on your weaver rail.
I did not need to adjust it, but adjusting it don't seem to be difficult.
Tip: Most people probably don't have the fitting tool for the screws on this scope.
However, you can simply tighten the screws with your fingers to mount it on your rail.
If you want to get it even more tight, though, a dime (yes, the 10 cent coin) is a perfect tool."