I love how this thing shoots :gome: My next purchase will probably be the xd-9 sub. I shot very well with it, and so did my wife. Also, my XD-40 came with an ordering form for Pre-ban Hi-cap mags for the 9mm. I wonder if the 40 will fit into the 17rd 9mm mags, and how many it will hold. I'm probably going to order a few. wish me luck.