They are junk, don't even bother with them. I bought & put it on a ruger 10/22. At about 20 rounds, the crosshairs actually fell & twisted in the scope. I can understand this, as the 22LR is notorious for shaking new scopes apart. Sent it back to the factory, it was returned 2 months later. Put it back on the rifle, & this time it didn't even make 20 rounds before the same thing happened. I wrote BSA told them their scopes are s**t, and threw it away...