Gun Broker. I did first search for used USP 9MM and you can filter through the results for the compact model. Hard to restrict search to compact only because of various descriptions a seller might use as in USP Compact or USP-C. Second search is for USP Compact with no caliber specified.
I know Bud's gets dinged, but ... they do often offer "price matching" and you can get something for even less than their listed cash price offer. It's dangerous to your wallet. Ask me how I know this.
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