So this is a question particular to Marxichusetts because it may involve the rules they enforce upon us. I own a M&P 15 sport rifle. I ordered an A2 style buttstock to replace the stock one. The bolt that keeps the stock buttstock attached could be pinned, if I'm understanding correctly. Would it come that way from Smith or will I be able to just use one of those buttstock wrenches and take it off no problem? You know, a wrench like this: