{"product_id":"one-horse-oh-cu04-ar-15-300-aac-blackout-16-1-7-complete-upper","title":"One Horse OH-CU04 AR-15 .300 AAC Blackout 16\" 1:7 Complete Upper","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eOne Horse OH-CU04\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003eAR-15 upper receiver\u003c\/strong\u003e chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.300 AAC Blackout\u003c\/span\u003e\u003c\/strong\u003e and built around a \u003cstrong\u003e16-inch SOCOM-profile barrel\u003c\/strong\u003e machined from \u003cstrong\u003e4150 steel\u003c\/strong\u003e. The barrel wears a \u003cstrong\u003eblack nitride (melonite) finish\u003c\/strong\u003e for corrosion resistance and long service life, and the \u003cstrong\u003e1:7 rifling twist\u003c\/strong\u003e stabilizes a wide range of supersonic and subsonic \u003cstrong\u003e.300 BLK\u003c\/strong\u003e bullet weights for both suppressed and unsuppressed use.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003epistol-length gas system\u003c\/strong\u003e keeps the action cycling reliably with subsonic loads, while the \u003cstrong\u003e15\" M-LOK free-float handguard\u003c\/strong\u003e provides a slim, lightweight platform for mounting accessories along the sides and bottom. The handguard tops off with a full-length \u003cstrong\u003ePicatinny rail\u003c\/strong\u003e, giving you an optic-ready setup right out of the box. The barrel is finished with \u003cstrong\u003e5\/8x24 muzzle threads\u003c\/strong\u003e for direct-thread suppressor mounts or quick muzzle device swaps.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis drop-in upper ships fully assembled with a \u003cstrong\u003enitride BCG\u003c\/strong\u003e and \u003cstrong\u003echarging handle\u003c\/strong\u003e, ready to mate with any mil-spec \u003cstrong\u003eAR-15 lower receiver\u003c\/strong\u003e. Whether you are building a lightweight suppressor host, a hard-hitting \u003cstrong\u003e.300 BLK\u003c\/strong\u003e hunting rig, or a short-barrel replacement, the \u003cstrong\u003eOne Horse OH-CU04\u003c\/strong\u003e delivers a ready-to-shoot package at an everyday price.\u003c\/span\u003e\u003c\/p\u003e","brand":"One Horse","offers":[{"title":"Default Title","offer_id":55335896809794,"sku":"OHCU04","price":323.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_b17c4f39-0dd9-40c6-954a-33b511425ed5.jpg?v=1785171192","url":"https:\/\/centerfiresystems.com\/products\/one-horse-oh-cu04-ar-15-300-aac-blackout-16-1-7-complete-upper","provider":"Centerfire Systems","version":"1.0","type":"link"}