It is a good choice for reworking a gun. I did two single sixes, a .22 rifle, and a 4x Leupold scope and it worked great. Just don't spray the close tolerance moving parts. They won't have enough clearance to move properly. Get a GOOD spray gun. I used the el cheapo and it works, but you spend most of the time keeping the air hose on it.
BTW, my girls want me to do them a pistol in pink. go figure!