{"product_id":"hk-mr762-a4-complete-upper-receiver-assembly-7-62x51mm-nato-13-cold-hammer-forged","title":"HK MR762 A4 Complete Upper Receiver Assembly 7.62x51mm NATO 13\" Cold Hammer Forged","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eHK MR762 A4\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003eupper receiver assembly\u003c\/strong\u003e from \u003cstrong\u003eHeckler \u0026amp; Koch\u003c\/strong\u003e, representing the commercial evolution of the legendary HK417 battle rifle. This drop-in upper brings HK combat-proven performance to the AR-platform, chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e7.62x51mm NATO\u003c\/span\u003e\u003c\/strong\u003e (.308 Winchester) and built around a \u003cstrong\u003e13\" cold hammer forged steel barrel\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel is manufactured using HK's signature cold hammer forging process, producing an exceptionally durable and accurate tube that delivers consistent performance round after round. The upper is finished in a non-reflective \u003cstrong\u003ematte black anodized\u003c\/strong\u003e hard coat, and muzzle threads are cut to \u003cstrong\u003e5\/8x24\u003c\/strong\u003e for compatibility with a wide range of sound suppressors, muzzle brakes, and flash hiders.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned as the commercial counterpart to the HK417 used by military and law-enforcement units worldwide, the MR762 A4 upper assembly lets builders and existing MR762\/AR-10-pattern lower owners equip their rifle with HK-grade components. The complete upper ships ready to install on a compatible lower receiver group, offering a premium option for those seeking HK reliability in a .308-pattern rifle.\u003c\/span\u003e\u003c\/p\u003e","brand":"HK","offers":[{"title":"Default Title","offer_id":55063400546626,"sku":"187306","price":2670.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_bf47b448-8ba9-46c2-b228-0291cd4f000b.png?v=1784735003","url":"https:\/\/centerfiresystems.com\/products\/hk-mr762-a4-complete-upper-receiver-assembly-7-62x51mm-nato-13-cold-hammer-forged","provider":"Centerfire Systems","version":"1.0","type":"link"}