UPDATE: I recived the gun in the mail but the serial number on the butt had been BADLY filed out with a trianglular file. The transfer could not be completed and the ATF was called. I was given a refund for the gun by the seller. The ATF gave me the option I could either have the gun destroyed and keep my refund, or give them the gun for 6-8 months for research to try and find the number and if it could not be recovered then they would place a new number on the gun. I had it destroyed. I have just bought this as a replacement, I paid about 20 bucks more but its a 5th model in a non-standard barrel length and already blued. I'll continue with my plans to cut it down to make a pocket gun unless its very rare and I'm mistaken?