{"product_id":"lantac-556-enhanced-bcg-tin","title":"LanTac 556 Enhanced BCG TIN – AR-15\/M16 5.56\/.223","description":"\u003cp\u003eThe LanTac 556 Enhanced Bolt Carrier Group replaces your AR-15's factory BCG with a precision-machined upgrade built for reliability under sustained fire. This enhanced carrier group features advanced machining to reduce friction points and optimize bolt cam path geometry, extending component life and improving cycling consistency. Ideal for shooters who demand dependable performance in competition, training, or duty applications.\u003c\/p\u003e\u003cp\u003eManufactured from 8620 steel carrier and 9310 steel bolt, this BCG receives a Titanium Nitride (TIN) coating for exceptional hardness and lubricity. The gold-toned TIN finish provides superior wear resistance and simplified cleaning compared to standard phosphate treatments. Chrome-lined gas key is properly staked per mil-spec. Installation is drop-in for any mil-spec AR-15 or M16 pattern rifle chambered in 5.56 NATO or .223 Remington.\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-15, M16 (5.56 NATO, .223 Remington)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Material:\u003c\/strong\u003e 8620 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e 9310 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Titanium Nitride (TIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Key:\u003c\/strong\u003e Chrome-lined, staked\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, cam pin, firing pin, retaining pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LanTac USA LLC","offers":[{"title":"Default Title","offer_id":47943841317119,"sku":"LAN01UP556TINEBCG","price":305.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2867441.jpg?v=1766603357","url":"https:\/\/doublestackstore.com\/products\/lantac-556-enhanced-bcg-tin","provider":"Double Stack Store","version":"1.0","type":"link"}