If your receiver is steel then it should work OK. Alloy receivers may present a problem with stripped threads or screws that wont stay tight. Use a magnet if in doubt. I have mounted scopes and quite a few red dot sights on shotguns by drilling, tapping and mounting a Weaver type base. Instead of the normal 6X48 threads, I used 8X40 and haven't had one come loose yet. Be careful to use screws that don't protrude into the action.
If you haven't already done so, take a look at Red Dot sights. They work quite well on shotguns. Wide field of view, excellent in low light, good out to 100 yds, variable brightness dot, short, light, and the best part is; because they don't magnify, there is no such thing as eye relief. If you do choose a scope, make sure it has extended eye relief or you'll come home with a black eye.
