{"product_id":"ar-15-low-profile-quad-rail-gas-block","title":"AR-15 Low Profile Quad Rail Gas Block","description":"\u003cp\u003e\u003cspan style=\"font-size:20px;\"\u003eLow profile quad rail gas block is constructed of anodized aircraft grade aluminum with a matte finish. The low profile gas block replaces the existing A2 front sight. It comes equipped with four Picatinny rails, allowing you to mount accessories such as a front sight or a laser underneath. The top rail is lower than the flat top by 0.28\". It is compatible with .223\/5.56mm with a .750 diameter barrel. Roll pin and set screws are included. \u003cstrong\u003eNo modification to your barrel is required.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\n\n\u003cul\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003eLow profile\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003eFits .223\/5.56mm with a 0.75\" regular barrel and standard gas tube\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003eReplaces A2 front sight\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003ePrecision machined from aircraft aluminum with tight tolerance control\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003eTop rail lower than flat top by 0.28\"\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"font-size:20px;\"\u003eIncludes gas tube roll pin and locking screws\u003c\/span\u003e\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Centerfire Systems","offers":[{"title":"Default Title","offer_id":52668974235970,"sku":"ACC0066","price":31.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/getimage__48986.1697569745.1280.1280.jpg?v=1774274667","url":"https:\/\/centerfiresystems.com\/products\/ar-15-low-profile-quad-rail-gas-block","provider":"Centerfire Systems","version":"1.0","type":"link"}