{"product_id":"lantac-m-spec-bcg-762-nitride-blk","title":"LanTac M-Spec BCG 7.62 Nitride – AR-10\/SR-25 Pattern Rifles","description":"\u003cp\u003eThe LanTac M-Spec BCG is a mil-spec bolt carrier group designed for reliable cycling in 7.62 NATO\/.308 Winchester AR-10 and SR-25 pattern rifles. This is a direct replacement for factory bolt carrier groups, offering improved corrosion resistance and reduced friction through its nitride finish. Shooters looking for a dependable spare BCG or an upgrade from a basic phosphate carrier will find this a solid choice for duty, hunting, or range use.\u003c\/p\u003e\u003cp\u003eThe carrier and bolt are machined from 8620 steel and Carpenter 158 steel respectively, then treated with a complete nitride finish that penetrates the metal surface rather than coating it. This results in a harder, slicker surface that resists wear and simplifies cleaning. Gas rings, extractor, ejector, and firing pin are all included. Installation is drop-in for anyone familiar with AR-pattern rifles—no gunsmithing required.\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-10, SR-25 pattern rifles in 7.62 NATO\/.308 Winchester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 8620 steel carrier, Carpenter 158 steel bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Nitride (complete coverage)\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, gas rings, extractor, ejector, firing pin, cam pin, firing pin retaining pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LanTac USA LLC","offers":[{"title":"Default Title","offer_id":47943836369151,"sku":"LAN01-MSPEC-762-NITBCG","price":220.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/3090219.jpg?v=1766603253","url":"https:\/\/doublestackstore.com\/products\/lantac-m-spec-bcg-762-nitride-blk","provider":"Double Stack Store","version":"1.0","type":"link"}