To the OP. I have an older, Wingmaster 870 I bought used and in rough shape many years ago. When I got it, it had a Mossberg 18.25", cylinder bore barrel. The original barrel was probably lost in a manner similar to that mentioned in a previous response.
Sometime later, I picked up a 3-in chambered full length, parkerized vent rib, Remington barrel. It ain't pretty, but it runs slicker than owl poop with either barrel. I'm sure your experience would mirror mine.
Sometime later, I picked up a 3-in chambered full length, parkerized vent rib, Remington barrel. It ain't pretty, but it runs slicker than owl poop with either barrel. I'm sure your experience would mirror mine.