Check with Engage Armament. They are pretty versed in the sales of the legal AKs. They told me that the letters ‘AK’ are the disqualifiers for non 7.62x39 AK style rifles. So brands whose model #s are other than that are most likely ok to buy/sell rifle versions in Md. Recently there was a Polish 7.62x39 rifle legal for sale. See what that model# is and if it has some different parts from a regular AK.Dunno, I’m mostly going by what I’ve read. My only experience dealing with them was when I moved here and submitted my 77R to register my handguns. I do think that the evidence on their web site speaks for itself.
Have to admit that I don’t know. I would really go through an FFL who knows the process. I was just at Engage Armament yesterday, and they told me that they’re working on appealing MSP’s determination on the Daniel Defense MK12. Maybe talk to them?