That's a second gen POF stock. The first versions were very close to HK in fit and appearance. The POF factory got damaged I believe from an earthquake or some type of collapse when those second gens started to appear after that. The visual giveaway is the contour of the forks and the metal appearance on the cap. I would buy a first gen POF stock with no hesitation, pass on the second Gen. Numrich had both versions in stock at one time before running OOS.