This is the metal frame model. 5" and slide cut for light weight. Fiber optic sights. Metal grip with multiple grip inserts. This one comes with a big case a 4 magazines with special inserts to work with the magwell. Also has a Holosun SCS GRN M&P sight zeroed at 15 yd. Gun runs flawlessly and has never failed to feed, fire, or eject. Only selling because I have too many precision pistols. I have $1400 invested last year on it. You can get this ported to match the slide serrations and ports. 900 FIRM 4 eight zero 23I sevensix 5 nine Text is preferred. Located AMA