Camouflaging Your Gun
Painting your rifle is an easy DIY project that makes for a great off-season activity. Spray painting a gun is virtually impossible to foul up for the simple reason that there’s no such thing as a right or wrong way to camo a gun. From the article "DIY: Camouflaging Your Gun."
I masked off the parts I didn't want to paint with "blue tape" from Home Depot. Obviously you don't want to paint the lenses of your scope and you want to keep paint out of the rifle's raceway. I masked the power ring on this Zeiss scope as well so I could read it. A fixed power wouldn't matter.