The p225 (and so I assume the p6 as well) is in pretty high demand. Even with some holster wear $350 seems like a decent deal to me. I've had a hard time finding one for under $450.
They don't make them anymore, and the demand for easily concealed single stack 9's is pretty high right now. Talk him down if you can, but I wouldn't hesitate to buy it at $350 unless it's pretty beat up.
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