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Doublestar Corporation Bolt Carrier Group
Complete bolt-and-carrier group easily drops into a standard mil spec AR-15 upper, and it is 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. Made in the USA.