FYSA to potential buyers - if it's in .308 cal, the M1A can't be sold in MD. It went on the state s##t list in 2013 with the release of SB-281.
Oddly, the same rifle in 6.5CM can be sold in MD. From the same people that brought you the decision that a 5.56 AR-15 is illegal, but the same rifle in .300 BO isn't.