Pardon my ignorance. I don't know a lot about shotguns and less about ones chambered in 3" Mag. I have a Belgium A5 with two barrels. They are 2 3/4" Mod and IC choked. I have an opportunity at another barrel in Full choke for a Belgium A5 same gauge but it is 3" Magnum. Would this fit and work on my receiver? I am thinking no but don't really have a clue.

Thanks for any info you can provide.

Jim