I have a guy who wanted to sell me his Saiga 12 fully converted. I checked it out, parts count appears correct. The barrel has been cut down and pinned/welded with an OAL is 18.5. This guy had put a magwell on and removed it. I was contemplating buying it, I told him I would want to weld the holes from the magwell. He took it to a gunsmith who told him he couldn't touch it without a letter from the ATF.. I'm no lawyer but I thought pinning and welding was lawful. I read somewhere that you couldn't remove the barrel from the receiver if cut down.
Can someone make sense of this? If you know of any ATF links. I have done a ton of reading and I'm still confused. Thanks guys.