I've got a 3K on layaway and have been looking at various pictures of M3000's and 3K's and it seems most, if not all, the 3K's I'm seeing have a more pronounced gap between the barrel and mag tube than the M3000's. Is there anything I can do to fix it or is there an actual difference between the receivers I'm not aware of that causes this? Is having the gap something that 3 gunners prefer for some reason? It's def not a dealbreaker, I just don't particularly like the aesthetics. Is it just a matter of buying the right after market extension or barrel clamp? Or do I just need an M3000 forend? Any info is appreciated. Thanks.