{"product_id":"fz-7-62x39-bcg-no-hammer-nib","title":"FailZero 7.62x39 Bolt Carrier Group (No Hammer) – AR-15 Platform","description":"\u003cp\u003eThe FailZero 7.62x39 Bolt Carrier Group is engineered for AR-15 pattern rifles chambered in 7.62x39mm. This BCG provides reliable cycling with the unique geometry required for the tapered 7.62x39 cartridge, addressing common feeding issues associated with adapting this caliber to the AR platform. The \"no hammer\" configuration means this BCG does not include a firing pin—suitable for builds where you're reusing existing components or require specific firing pin selection.\u003c\/p\u003e\u003cp\u003eThe carrier and bolt are treated with FailZero's Nickel-Boron (NiB) coating, which provides a self-lubricating surface that resists fouling and simplifies cleaning. The coating penetrates the metal surface rather than sitting on top, offering consistent performance even under sustained fire. This is a drop-in component for standard AR-15 lower receivers, though proper headspacing verification is recommended when installing any new bolt. Includes carrier, bolt, cam pin, and firing pin retaining pin.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 platform rifles chambered in 7.62x39mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Nickel-Boron (NiB) coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in (headspace verification recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier, bolt, cam pin, firing pin retaining pin (no firing pin\/hammer included)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FailZero","offers":[{"title":"Default Title","offer_id":47937896579327,"sku":"FZ-762X39-01-NH","price":171.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1260774.jpg?v=1766499543","url":"https:\/\/doublestackstore.com\/products\/fz-7-62x39-bcg-no-hammer-nib","provider":"Double Stack Store","version":"1.0","type":"link"}