[bullfever]

This gun is not a "skillfully" sleeved shotgun barrel. Their is no way a 410 shell would ever come close to fitting anywhere in this barrel. The end of the barrel doesn't have a large enough diameter to allow a this. Their is no extra screws, just the one on the bottom in the wood like the one in the link. Just before it tapers down it has made in the US (typical for these guns) in front of the sites and then it tapers down. I have seen pictures of about 10 different rear sites so a different rear site means nothing. I have also seen half of the guns with or without the loop on the trigger guard so again means nothing. Also the one in the link is a 12" barrel and not the 8". If you look the links picture the barrel tappers gradually and I would assume to get the same size at the end of the barrel they would have done the more drastic taper like mine shows to get the size at the end for the 8". I am having a professional look at the gun at lunch time and should have some more information.