I agree with Hylander. I think the Weaver is a great mounting system. It is easy-on and easy-off and can handle heavy recoil. Plus, it mounts over the frame so eye relief is correct for most pistol scopes. The only minus, if you could consider it one is that it leaves a small line on the barrel where it takes the blueing off where it mounts. I had one on a .41 mag Blackhawk 6.5" and it was bulletproof.