This one is missing some parts,like the lifter,pin and screw in middle of receiver. Took it all apart to inspect everything. I can not remove the firing pin even though the lifter and pin is gone. Looks to short to function. Any thoughts? I've included a pic of the chamber. Looks like firing pin was hitting low and buggered up in general. Ok? Not ok? Lastly I've read the receiver and barrel markings should match. These do not. So..... do I have a wall hanging here?

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