I had talked to wilsons at one time about armor-tuffing my p7, but they said I had to send it to them completely disassembled, and quoted a horrible turn around time. I know walter birdsong used to do od finishes, and I think mark graham at arizona response systems does it too with metacol 3.
P7's a great pistol, but damn it gets hot during those practice sessions!
cheers,
Derek