{"product_id":"lbe-unlimited-ar145rbk-ready-build-kit-5-56-nato-14-5-chf-barrel-complete-ar-15-upper","title":"LBE Unlimited AR145RBK Ready Build Kit 5.56 NATO 14.5\" CHF Barrel Complete AR-15 Upper","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLBE Unlimited AR145RBK Ready Build Kit\u003c\/span\u003e\u003c\/strong\u003e is a turnkey \u003cstrong\u003eAR-15 complete upper receiver\u003c\/strong\u003e package built around a \u003cstrong\u003e14.5\" Cold Hammer Forged (CHF) barrel\u003c\/strong\u003e chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e5.56x45mm NATO \/ .223 Remington\u003c\/span\u003e\u003c\/strong\u003e. The fully assembled upper is ready to drop onto any mil-spec AR-15 lower receiver for an instant, complete carbine build.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt the heart of this build is the \u003cstrong\u003e14.5\" Cold Hammer Forged barrel\u003c\/strong\u003e. The cold hammer forging process produces an exceptionally smooth and concentric bore, contributing to improved accuracy potential and extended service life under sustained use. The barrel is paired with a \u003cstrong\u003emid-length gas system\u003c\/strong\u003e, a popular configuration that helps reduce felt recoil and delivers reliable cycling across a wide range of \u003cstrong\u003e5.56 NATO\u003c\/strong\u003e ammunition weights.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe complete upper comes fully assembled with an \u003cstrong\u003eM16 bolt carrier group\u003c\/strong\u003e and a \u003cstrong\u003emil-spec A2 flash hider\u003c\/strong\u003e installed at the muzzle. Whether completing a new carbine build or refreshing an existing platform, the LBE Unlimited Ready Build Kit delivers a straightforward path to a 14.5\"-barreled upper in the versatile \u003cstrong\u003e5.56 NATO\u003c\/strong\u003e \/ \u003cstrong\u003e.223 Remington\u003c\/strong\u003e chambering.\u003c\/span\u003e\u003c\/p\u003e","brand":"LBE Unlimited","offers":[{"title":"Default Title","offer_id":55045985206594,"sku":"175879","price":524.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_a6b0dd2d-42b9-4d01-9ea9-c0b9d206bf4f.png?v=1784697596","url":"https:\/\/centerfiresystems.com\/products\/lbe-unlimited-ar145rbk-ready-build-kit-5-56-nato-14-5-chf-barrel-complete-ar-15-upper","provider":"Centerfire Systems","version":"1.0","type":"link"}