John, I tried the B-square mount, thought I would save some bucks. It was a waste of money. The retaining bolt broke twice, the mount would not hold zero for more than a few shots. I finally got rid of it, this was several years ago so they may have improved them by now. I would suggest you go ahead and spend the money for a good mount to start with and save yourself the aggravation. Also you will need some type of check piece for proper alignment. Good luck