Thanks mate I would have thought the bore size would have to continue all the way down the barrel and not just a 3" insert that gos in or dose that not make any difference if not I will buy the inserts?
actually it`s only 2" plus we only ever buy guns that are Auto cocker thread only as these have Sooo much variety of barrels to choose from, I`ve always told my guys that if it aint cocker thread ?? It aint worth having.