I'm trying to purchase a barrel for a Browning BPS Stalker 3.5" shotgun, its a '95 model. While searching, I found several barrels "not intended for use on pre '98 guns". I spoke to a customer service rep and was told that all their barrels were for post 98 guns. After further investigating, I read that the parts are not different for pre vs post 98. Can anyone give me some direction here.