Thanks Ghostsequel, I was surprised how well it turned out considering it was my first paint job.
Kileyhaz, I didn't prep the stock at all, I just used Khaki krylon paint. I first started with two layers and then added an additional two a couple weeks later. Even so, the contact points are obviously going to wear off as you can tell in the picture. Just make sure you follow the directions EXACTLY on the krylon can. They're something to the effect of, "paint dries in 15 minutes, able to be handled after 24 hours, apply all additional coats with in 24 hrs or seven days later" If you apply additional coats after 24 hours, but before 7 days the paint will clump or something to that effect.
The paint doesn't spear right off after a game or two though, so I would definitely paint an M14 if you were to get one, it really improves the finish of it in my opinion, and just looks better than the black that Socom 16 comes with.