Hey, I bought these pistols and I don't know much, if anything about them. Any help on that is welcome. Now the problem is, neither of them open to load, I know how to, they just won't why might that be? The one that is black with the wooden handle's trigger is separate, I have it, it just isn't installed. Also the two grips won't screw in together. Anybody have any suggestions on what I can do to fix these things? I know there are some not for shooting, but the serial number says these fire. If I replace parts will it do anything to the value? p.s. original wooden case.