Discussion Starter · #1 ·
Right now I have a 500A with the 20" barrel and what I assume to be an 8 shell tube (it comes all the way out to the end of the barrel). I am wanting to swap to an 18.5" barrel for better movement in my house but am wondering what I need to do about my shell tube? I couldn't find anyone who has changed out to a shorter shell tube but have read about people having 8 shell tubes on 18.5 barrels. What do I need to do?