X-Bolts are great rifles. I have seen several Gray ones at the local gun shows. I really don't care for it. The black with the Duratouch stock is nice. Try Gunbroker, I think they have several Gray ones on there.
If I remember, the gray is not Duratouch. (ruberized) Go to the Browning web-site, maybe it will help

As far as the rifle itself, it should be an 1MOA gun @ 100yds