{"product_id":"tacfire-bu30818-308-win-18-m-lok-complete-upper-black-nitride","title":"TacFire BU30818 .308 Win 18\" M-LOK Complete Upper - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eTacFire BU30818\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.308 Win\u003c\/span\u003e\u003c\/strong\u003e rifle upper assembly designed to drop onto a mil-spec \u003cstrong\u003eAR-10\u003c\/strong\u003e lower receiver (sold separately). It is a turn-key solution for builders who want to bring up an AR-platform rifle in \u003cstrong\u003e.308 Winchester\u003c\/strong\u003e without sourcing each major component individually, and it ships ready to run with the included \u003cstrong\u003ebolt carrier group\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt the heart of this upper is an \u003cstrong\u003e18\" barrel\u003c\/strong\u003e finished in \u003cstrong\u003eblack nitride\u003c\/strong\u003e for improved corrosion resistance, surface hardness, and lubricity over standard phosphate or stainless finishes. The barrel is mated to a \u003cstrong\u003e7075-T6 aluminum\u003c\/strong\u003e receiver finished in \u003cstrong\u003eblack anodized\u003c\/strong\u003e, giving the platform the strength and rigidity expected from a duty-grade AR-10 build while keeping weight in check. A free-float \u003cstrong\u003eM-LOK\u003c\/strong\u003e handguard wraps the barrel, providing a slim, ergonomic platform with plenty of real estate for lights, lasers, bipods, foregrips, or other M-LOK compatible accessories along the sides and bottom.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis upper ships \u003cstrong\u003eoptic ready\u003c\/strong\u003e, allowing you to mount your preferred optic directly to the Picatinny top rail. Once paired with a compatible \u003cstrong\u003eAR-10 \/ .308 Win\u003c\/strong\u003e lower receiver, the BU30818 is ready for the range, the hunt, or a long-range precision build.\u003c\/span\u003e\u003c\/p\u003e","brand":"TacFire","offers":[{"title":"Default Title","offer_id":55006726783298,"sku":"146735","price":454.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_b4f1a69f-cecd-416b-ac84-92c15d870d38.png?v=1784582261","url":"https:\/\/centerfiresystems.com\/products\/tacfire-bu30818-308-win-18-m-lok-complete-upper-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}