I'd like to try to refinish an AR upper and lower with either Brownell's Gun Kote or their Teflon-Moly finish. Anybody have experience with these products? Any advice on prep and application would be appreciated, too.

There's only one auto body shop in town, and they may not want to do any parts bead blasting for me. Would the finished product look like total shit if I sanded instead of blasted?