I'm sorry if this has been covered before, I've tried searching but it's not working out too well on mobile. I'm in MA and am looking to purchase a rifle online but it has a folding/telescoping stock, hi cap mag and flash hider. I spoke to a local shop here and they didn't seem too interested in doing the work because of the legality of them receiving in a non compliment rifle on the books and selling it to a resident. Would I legally be able to have it sent to a shop in NH that I would discuss this with ahead of time and have either them or an outside gunsmith pin the stock in place, install a compensator and either throw away or they can keep the magazine? Thanks.