Hi, and thank you for allowing me to join your forum. I live close to the border, south of Pocomoke, and I am joining to learn in order to help a brother retired Chief, trapped behind the protective iron fist of the Benevolent Democratic Peoples Republic of Maryland, who happens to own a pre-2012 S&W M&P M4 type AR carbine. He wants to change the upper out to something like an 18" straight profile barrel with a free float handguard, flat top. Since it was legally owned by him prior to the latest Maryland "Sandy Hook knee jerk" laws being passed, what are the legal implications associated with this project? This is not a post-2012 AR, and it is not a "Heavy Barrel" variant. It does not currently have a flash hider however. Along with the previous questions, can he add a flash hider to his new upper?
What do I tell him (besides "vote!" and "lobby for better laws!", or move )?
What do I tell him (besides "vote!" and "lobby for better laws!", or move )?