took off cat to put barrel on not see thatI hope it fixes it for you. Be careful when taking off the mag cap that the detent and spring dosen't pop out on you. (some are loose from the factory)
Keep us posted.
View attachment 16017
Inserting round in tube when it got to the brass part had to push real hard then it resisted the went in.
Going to install new spring if not better send into Mossberg