Hi i am looking for a M&P 15 .22 for sale, i would like to trade my Remington 597 and some cash for a M&P 15 .22lr. My 597 is used of course, and is about as reliable as any other .22lr. It is a standard grey 597 with no mods to it. I would like to trade for the M&P 15 .22lr that has the Mlock...