I already read them. The MSP is only defining rifles that say "Colt Sporter HBAR" as the only exception to SB 281 ,not HBAR rifles in general. And it wouldn't be completing a transaction in another state. It would be intiating and completing a transaction in another state. Anyhow whatever it is, yeah the Commerce Clause allows the Federal Government to regulate interstate commerce. However there is the Equal Protection Clause and the Privilage and Immunities Clause, which can bring this into question regardless of the Gun Control Act of 1968. The ultimate question that needs to be answered is can the Federal Government enforce state laws under the Commerce Clause. This violates the Equal Protection Clause in a way. Because if a Maryland resident goes out of state, that person is treated differently than residents of that other state. I think Federal law can only apply under the Commerce Clause and state laws end at state lines. Somebody should challenge this in Federal Court.