I'm wanting to build an era accurate prototype rifle. Maybe a Colt 645s, because it was a semi auto. I was wondering the legalities of stamping the proof marks and "property of US government". This is being built on an 80% lower.
I know that foreign stamps are technically legal but I think that US governmental proofs might not be. I know it was discussed on some forum I am on but I can't find the thread now. If I do I'll post it.