Put this on a 22 cal. that had one of those really tiny scopes on it when I purchased it and was to difficult to get a good sight picture. I did not want to spend a lot of money on replacing it and came across this one and decided to give it a try. Mounted easily, zeroed in a few shots and then let my wife shoot it to make sure it stayed on zero, after a hundred rounds or so we decided it was a good fit. Shipping and price were good, sight picture easy to obtain, made shooting this 22 fun again. Optics are clear and easy to adjust.