Hi everybody, Can I buy guns with promotional codes at stores that sell them? What are those stores? And if I want to update the latest promotional code every day to buy, what should I do?

I'm hoping one of you have a SU16 pistol grip and stock adapter for sale? I've looked everywhere and found a guy in Canada with several but the paperwork to ship is too much of a hassle for him. While I'm at it, do any of you have any other accessories such as forends, stocks, etc for sale?