Ok, I have an old Winchester Defender 1300 pump shotgun, and its a nice gun, but I have a hankering for a more "tactical" gun. Should I buy a collapsible stock and forearm, and stick with the old girl, or buy a 590A1 of 870 already done? Has anyone here added a collapsible stock and forearm to an old Defender? Any suggestions? Wanna kill these ads? We can help!