Mossberg Scope Bases for a wide range of models, rifles, shotguns, and various MOA. Attach a Weaver base to your rifle for a scope to increase accuracy and range. Just add a rifle scope, compact rifle scope, red dot scope, green dot scope, or a reflex sight to complete the package. Ammo chamber checkers avaiable to check the specs on reloaded, military, or factory ammo. Find your Mossberg rifle scope mount and accessories at The Country Shed.