So I just picked up a Hi-Standard HD Military and it has the 4.5 inch barrel. The bluing is in ok shape but it could be better. I primarily bought this as a shooter but I have a nasty habit of not being able to leave my guns alone. I have been shopping around for an aftermarket match barrel or even a standard barrel that is longer but I have been seeing here and there that you can not take the barrel out on your own at least which I don't mind but is it possible?