We just received this promo today. This is a great deal on an already affordable firearm. As of today we have some of the Glock 19 mag versions and the multi mag version. That version comes ready to accept M&P 9 mags but you can buy an additional mag catch for a variety of different mags, the most popular upgrade I see lately is the mag catch that allows the use of a Sig P320 magazine. Stop by the range to check one out or shop right on our website.