Gagemates disclaim any use in damascus bbls,so why not have Briley make short tubes for your gun?More money yes,and a little more weight.Briley said they will make me companion tubes to what ever length I want,so I would opt for 10" tubes to have the actual muzzle ahead of the forearm t protect the hand.The pressure are way low at this point,and the set will be about 10oz added.