Ok folks, help me decide whether or not to buy this CZ75B please. A guy at the range who I chat with frequently has a like-new CZ75B with 3 mags for sale @ 300 dollars even. I have run all three mags through it at least once each with zero problems and he claims to have never had a problem either. It's got about 500 rounds through it and he is getting rid of it because he is afflicted with the 1911 bug and the 300 dollars will put him over the top for a new Springfield Mil-Spec he has his eye on. What say you all about this price?