{"product_id":"wmd-nib-x-bcg-with-hammer-556","title":"WMD Guns NIB-X BCG with Hammer – AR-15 \/ 5.56 NATO","description":"\u003cp\u003eThe WMD Guns NIB-X Bolt Carrier Group with Hammer is a complete drop-in replacement BCG designed for AR-15 platform rifles chambered in 5.56 NATO\/.223 Remington. This BCG features WMD's proprietary NIB-X nickel boron coating, which reduces friction and carbon buildup for easier cleaning and improved reliability under sustained fire. The included hammer is coated with the same NIB-X finish for consistent performance across your fire control system.\u003c\/p\u003e\u003cp\u003eNIB-X coating provides a self-lubricating surface that maintains function even when dry, though proper lubrication is still recommended for optimal longevity. The nickel boron finish is extremely hard and corrosion-resistant, outperforming standard phosphate or chrome coatings in wear testing. Installation is straightforward—this is a drop-in component that requires no fitting or gunsmithing. Simply remove your existing BCG and hammer, install these NIB-X coated parts, and reassemble.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group with Hammer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15, 5.56 NATO \/ .223 Remington\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Mil-spec 8620 steel carrier, 9310 steel bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e NIB-X Nickel Boron coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier, bolt assembly, cam pin, firing pin, retaining pin, coated hammer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WMD Guns","offers":[{"title":"Default Title","offer_id":47939838116095,"sku":"WMDNIBXBCG-0002","price":173.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1306304.jpg?v=1766548183","url":"https:\/\/doublestackstore.com\/products\/wmd-nib-x-bcg-with-hammer-556","provider":"Double Stack Store","version":"1.0","type":"link"}