Md. Code, Public Safety § 5–702

This subtitle does not apply to:

(1) a firearm that:

(i) was manufactured before October 22, 1968; or

(ii) is an antique firearm;

(2) a sale, an offer to sell, a transfer, or a delivery of a firearm or an unfinished frame or receiver to, or possession of a firearm or unfinished frame or receiver by:

(i) a federally licensed firearms dealer;

(ii) a federally licensed firearms manufacturer; or

(iii) a federally licensed firearms importer; or

(3) a transfer or surrender of a firearm or an unfinished frame or receiver to a law enforcement agency.