1977 yugo sks Just finished going through it and fixing a couple stock related issues and slapped the red dot on. The guy I got it from says it was transferred to ma via ffl. (I won't say the ffl's name) he is an honest guy I don't question him. That said the ffl has been involved in some "issues" in the past so I question the legality of the transfer. Assuming it is not ma compliant what is the minimum I must do to make it compliant?