Not really necessary..What you have is an earlier 12 ga 11-87 barrel. After a few years they went to a light contour bbl to reduce weight to make the gun"feel" like an 1100. 3 inch guns retained the heavy contour but they had a different finish. If ya got it cheap you did good.. Just bought one at a gun show for a hundred bucks w/chokes. Put it on an old 1100 I bought at a yard sale..shoots good. Shot a pheasant or 2 with it. I now have 275 bucks tied up in that gun.
