{"product_id":"luth-ar-bl-11-7-5-56-nato-11-5-1-7-lightweight-ar-15-barrel-chrome-moly-vanadium-black-phosphate","title":"Luth-AR BL-11-7 5.56 NATO 11.5\" 1:7 Lightweight AR-15 Barrel - Chrome Moly Vanadium - Black Phosphate","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLuth-AR BL-11-7\u003c\/span\u003e\u003c\/strong\u003e is an \u003cstrong\u003e11.5\" lightweight\u003c\/strong\u003e AR-15 barrel chambered in \u003cstrong\u003e5.56x45mm NATO\u003c\/strong\u003e, built on a \u003cstrong\u003eGovernment-profile\u003c\/strong\u003e button-broached \u003cstrong\u003eChrome Moly Vanadium\u003c\/strong\u003e steel core and finished in \u003cstrong\u003eBlack Phosphate\u003c\/strong\u003e. It is designed for a carbine-length gas system and serves as a replacement or build component for AR-15 upper receivers.\u003c\/span\u003e\u003c\/p\u003e\\n\\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eRifling is button-broached at a \u003cstrong\u003e1:7 RH\u003c\/strong\u003e twist with six lands and grooves, and the chamber features an \u003cstrong\u003eM4 feed ramp\u003c\/strong\u003e for reliable feeding from standard STANAG-pattern magazines. The muzzle is threaded \u003cstrong\u003e1\/2x28\u003c\/strong\u003e to accept the standard AR-15 pattern of flash hiders, muzzle brakes, and sound suppressors.\u003c\/span\u003e\u003c\/p\u003e\\n\\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel's gas block journal measures \u003cstrong\u003e.750\"\u003c\/strong\u003e in diameter, making it compatible with a wide range of low-profile clamp-on and set-screw gas blocks as well as traditional fixed front sight towers. The Government profile keeps the barrel straight and rigid through the chamber while the lightweight contours ahead of the gas block trim front-end weight. At \u003cstrong\u003e11.5\"\u003c\/strong\u003e, the BL-11-7 is well suited for AR-15 pistol and short-barreled rifle builds.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":55672092950850,"sku":"186455","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_9d160ffe-305d-4048-ba5b-aeb83e800319.png?v=1785838989","url":"https:\/\/centerfiresystems.com\/products\/luth-ar-bl-11-7-5-56-nato-11-5-1-7-lightweight-ar-15-barrel-chrome-moly-vanadium-black-phosphate","provider":"Centerfire Systems","version":"1.0","type":"link"}