The COP 357 is a unique four-barrel derringer chambered in .357 Magnum, designed as a high-powered backup for off-duty police. It features an internal rotary dial firing pin that cycles through barrels with each trigger pull. Despite its power, the firearm is described as a 'brick of stainless steel' with painful recoil, poor ergonomics, a heavy trigger pull, and ineffective sights, making it more of an oddity than a practical firearm.
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