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Mfg Item #: AR100
Complete bolt-and-carrier group easily drops into a standard mil spec AR-15 upper and it's ready to shoot. Batch magnetic particle inspected bolt gives long service life. Bolt and carrier feature a matte black phosphate finish that resists heat wear and corrosion. Carrier is chrome lined and has a staked gas key attached. Includes bolt assembly firing pin firing pin retaining pin cam pin and complete carrier.