I used the one time sprayer they sell and am pretty pleased with the results
Here's the actual gun:
It's a Colt Combat Commander Series 80 that I picked up pretty well used for dirt cheap. It was two tone with a ton of wear marks, a crappy looking hogue rubber grip and had a serious FTE issue along with a front sight that liked to wander out of the dovetail. A mix of Ed Brown and Wilson parts. several hours of tinkering and a little paint and it eats any ammo I put through it and doesn't look half bad either.