Looking to put a fastfire or similar style on my sons 20 gauge. It is a youth model Escort semi auto. Apparently they don't make any mounts for a 20 gauge. I tried to mount it on top, but he only has a dovetail mount. And with the dovetail to picatiny and then the sight with bracket, it's way too tall for him, as he's only 8. His head is off the stock it's so high. Even a little much for a cheek pad. The next option was to drill and tap and mount on top, which was still a bit high. Debating on using the mount that goes between the receiver and stock, but would have to fab one to fit. Any ideas or suggestions? Thanks!