{"product_id":"stern-defense-sd15-mod4-9mm-luger-16-1-15-m-lok-complete-upper-black","title":"Stern Defense SD15 Mod4 9mm Luger 16.1\" 15\" M-LOK Complete Upper - Black","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense SD15 Mod4\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e9mm Luger\u003c\/span\u003e\u003c\/strong\u003e AR-15 upper receiver assembly built around a \u003cstrong\u003e16.1\" barrel\u003c\/strong\u003e finished in \u003cstrong\u003eBlack Melonite\u003c\/strong\u003e with a \u003cstrong\u003e1:10\u003c\/strong\u003e twist rate. The upper receiver is machined from \u003cstrong\u003e6061 aircraft-grade aluminum\u003c\/strong\u003e and finished in \u003cstrong\u003ehard-coat anodized\u003c\/strong\u003e black for lasting durability and corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis upper ships fully assembled from the factory with a standard \u003cstrong\u003edust cover\u003c\/strong\u003e and \u003cstrong\u003eforward assist\u003c\/strong\u003e, a \u003cstrong\u003e15\" MOD4 M-LOK\u003c\/strong\u003e handguard secured by a clamp-on mounting system, and a \u003cstrong\u003eGlock-pattern magazine cut\u003c\/strong\u003e on the upper. The included \u003cstrong\u003eGlock-cut bolt\u003c\/strong\u003e is purpose-built for reliable feeding with 9mm pistol-caliber magazines.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned and assembled in the \u003cstrong\u003eUSA\u003c\/strong\u003e, the SD15 Mod4 drops onto any mil-spec AR-15 lower receiver, giving shooters a turnkey pistol-caliber carbine (PCC) build chambered in \u003cstrong\u003e9mm Luger\u003c\/strong\u003e with a modern M-LOK interface for accessories.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55337733783874,"sku":"S01553","price":535.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_d872c466-43c2-422f-9da4-4fbd7d49fe35.jpg?v=1785174113","url":"https:\/\/centerfiresystems.com\/products\/stern-defense-sd15-mod4-9mm-luger-16-1-15-m-lok-complete-upper-black","provider":"Centerfire Systems","version":"1.0","type":"link"}