{"product_id":"rise-bcg-223-5-56-nib","title":"Rise Armament BCG .223\/5.56 NIB – AR-15 Bolt Carrier Group","description":"\u003cp\u003eThe Rise Armament NIB BCG is a nickel boron-coated bolt carrier group designed for AR-15 rifles chambered in .223\/5.56. This carrier group delivers reduced friction, simplified cleaning, and consistent cycling compared to standard phosphate-coated BCGs. Shooters who run high round counts or operate in adverse conditions will appreciate the low-maintenance properties of the nickel boron finish, which sheds carbon buildup and requires minimal lubrication.\u003c\/p\u003e\u003cp\u003eManufactured from 8620 steel (carrier) and 9310 steel (bolt), the BCG features a complete nickel boron coating inside and out. The finish provides inherent lubricity and corrosion resistance. This is a drop-in component for mil-spec AR-15 upper receivers—no fitting or modification required. Includes gas key properly staked per mil-spec standards, extractor, ejector, and firing 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, .223\/5.56 chambered rifles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 8620 steel carrier, 9310 steel bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Nickel Boron (NIB)\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 Complete BCG with gas key, extractor, ejector, firing pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rise Armament","offers":[{"title":"Default Title","offer_id":47939677618431,"sku":"RISERA1011NIB","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1293526.jpg?v=1766545067","url":"https:\/\/doublestackstore.com\/products\/rise-bcg-223-5-56-nib","provider":"Double Stack Store","version":"1.0","type":"link"}