The camera / lighting gives some of the pics (especially the first) the appearance that you painted the whole thing a slate gray color.
I like that stock. I wish Specops (original) was around to make a Gas-Thru to ASA version. I have one on my T9.0 and I combined it with one for an A-5 to make it semi air-thru. Pro-connect goes to the stock then, a ~10" braided line comes out of the stock (up by where it conencts to the body) and terminates in a combined QD/Slide-check to connect to the mag. This way, when I would change mags, the end of the hose always stayed right next to the mag. It wouldn't work with the extended mags though.