My while is; If I am intending to use pistol mags, then the mag during the hand grip is the way in which to go. I do not like AR PCCs with pistol mags; it's like putting a round peg in a sq. gap. They will clarify the relevant laws https://knoxsnyjs.blogdomago.com/33989844/the-fact-about-gun-shop-near-me-that-no-one-is-suggesting