{"product_id":"bolt-carrier-assy-5-56-nickel","title":"Wilson Combat Bolt Carrier Assembly 5.56 Nickel – Complete Drop-In BCG","description":"\u003cp\u003eThe Wilson Combat Bolt Carrier Assembly in 5.56 is a complete, drop-in replacement bolt carrier group with a nickel boron finish for improved lubricity and corrosion resistance. Machined to Wilson Combat's specifications, this BCG delivers reliable cycling and extraction in AR-15 platform rifles chambered in 5.56 NATO or .223 Remington. The nickel boron coating reduces friction and makes cleanup faster than standard phosphate finishes.\u003c\/p\u003e\u003cp\u003eThis assembly includes a complete bolt carrier, bolt, cam pin, firing pin, and retaining pin—everything needed for installation. Compatible with mil-spec AR-15 upper receivers. The nickel finish provides a hard, low-friction surface that extends service intervals and resists carbon buildup during high-volume shooting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete bolt carrier group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 platform rifles (5.56 NATO, .223 Remington)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Nickel boron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier, bolt, cam pin, firing pin, retaining pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Direct replacement for mil-spec AR-15 BCGs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wilson Combat","offers":[{"title":"Default Title","offer_id":47944262516991,"sku":"WCTR-BCA-LMPNIB","price":226.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/bcalmp3fc7.jpg?v=1766635698","url":"https:\/\/doublestackstore.com\/products\/bolt-carrier-assy-5-56-nickel","provider":"Double Stack Store","version":"1.0","type":"link"}