I just rattle can sprayed my last one. HS Precision fiberglass stock, light buff with a ScotchBrite pad, wipe with denatured, taped off the recoil lug and barrel channel, spray.

I just did a base coat, then fogged other colors in a random pattern. No clear coat, all satin or flat colors.

Turned out so well, I ended up doing two different Ruger American rifles for friends.