I have one NIB Docter Optics 3.5 moa red dot scope. I bought this for my Ruger 22/45 and never used it. You will have to buy the correct mount for your application. $250.00 plus shipping to your door. If you need a Ruger MKII or 22/45 mount I will sell it for $35 plus shipping. You wont find a better deal on this scope.