Well, it depends on what condition the P95 is in, if it's in particularly good condition, preferably with a fairly low round count.. then yes absolutely. That is , IF it works properly. You'd have to gauge his motivations for trading obviously. I would suggest that if its possible you should go to a range with this person. You should shoot a couple mags with the gun to make sure it's feeding properly and hitting the point of aim. Offer the person the same deal with your gun. The ruger P95, though not one my favorites in aesthetics or ergonomics, is however a much better gun than a sigma IMHO. Personally, I consider the sigma to be one of the worst autoloaders currently produced in the US. I hear nothing but problems with them, and those triggers.. ugh. Then again, that's just my opinion. To be fair, I am completely predisposed to disliking any DAO gun. ( yes I know its really a striker, and not really a dao .. but that trigger is certainly a dao feel )
Rugers are typically great guns. Ugly and bulky guns, yes, but built like tanks.