The SAR B6P is a polymer framed gun, based on the CZ75. Even takes CZ mags if you shave off just a little of the polymer frame with a file. From the Turkish factory, the magwell is a touch too long for genuine CZ mags to lock into place. But the lockwork differs from true CZ as it allows for the thumb safety to be engaged without the hammer cocked. So it qualifies for the OP's required characteristic.
