There may be some local ordinances about shipping, but for the most part C&B guns are exempt from the FFL type laws governing cartridge guns. You should protect yourself with a copy of the buyers drivers license or some such as there are laws about not selling to under 18 years old.
You can still get a gun under 18 by joining the army with parents permission and they will give you one free, go figure.
If you have the adjustable sighted ROA, then the market is a lot slimmer than the market for the fixed sight version. I have four ROAs, two 7 1/2 and two 5 1/2. Love them. I had a adjustable sight version no one would pay a fair price for and I traded it for two 51 Navy repros.