Alright, so Im getting ready to polish the barrel on my 835. All I have is the factory turkey choke that came with the gun, and also I bought an SSX for it. While I was in Academy today I picked up a Profactor modified choke. On the package it says it'll fit Mossberg Accu-Choke models, along with about 6 or 7 other gun models besides Mossberg. Well I had my doubts about this choke working because of the other guns it says it'll fit, and I was right. The OD of the choke is a good bit smaller than the ID of the barrel, and also the choke is only about an inch or so long. My question is where can I buy a cheap modified or Improved cylinder choke since all I want to do is polish my barrel? Also why would they have Accu-Choke listed on this package if it wont fit my Accu-Mag barrel? Thanks for your time and help.