{"product_id":"lantac-308-enhanced-bolt-carrier-grp","title":"LanTac 308 Enhanced Bolt Carrier Group – AR-10\/LR-308 Platform","description":"\u003cp\u003eThe LanTac 308 Enhanced Bolt Carrier Group is a drop-in replacement designed for AR-10 and LR-308 platform rifles chambered in .308 Winchester\/7.62x51mm NATO. This BCG addresses common reliability issues in larger-frame AR platforms by optimizing mass distribution, gas flow, and cycle timing. Shooters upgrade to this carrier group for smoother function, reduced carrier tilt, and improved extraction consistency under heavy use or suppressed fire.\u003c\/p\u003e\u003cp\u003ePrecision-machined from 8620 steel with a hardened 9310 steel bolt, the carrier features internal geometry refinements that enhance gas venting and reduce bolt thrust. The entire assembly is finished with a low-friction coating for corrosion resistance and easier cleaning. Installation is drop-in compatible with DPMS-pattern lower receivers and requires no modification or gunsmithing. Set includes fully assembled bolt carrier, bolt, cam pin, and firing pin.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Complete Bolt Carrier Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-10\/LR-308 Platform (.308 Win\/7.62 NATO)\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 Low-Friction 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, Cam Pin, Firing Pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LanTac USA LLC","offers":[{"title":"Default Title","offer_id":47943843315967,"sku":"LANLA00300","price":329.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1272057.jpg?v=1766603416","url":"https:\/\/doublestackstore.com\/products\/lantac-308-enhanced-bolt-carrier-grp","provider":"Double Stack Store","version":"1.0","type":"link"}