{"product_id":"strike-industries-spbus-polymer-backup-sights-black-folding-for-ar-15","title":"Strike Industries SPBUS Polymer Backup Sights Black Folding for AR-15","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStrike Industries SPBUS (Strike Polymer Backup Sights)\u003c\/span\u003e\u003c\/strong\u003e deliver an affordable, low-profile back-up iron sight system for the \u003cstrong\u003eAR-15 platform\u003c\/strong\u003e. Built around durable \u003cstrong\u003eSI Polymer Extreme\u003c\/strong\u003e with a steel mounting tab and steel insert, the SPBUS is designed to handle real-world wear without piling unnecessary weight onto your rifle.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhen flipped down, the rear sight doubles as a set of built-in secondary apertures, giving you a backup aiming reference even with a primary optic deployed. The \u003cstrong\u003elow-profile, low-snag\u003c\/strong\u003e design keeps the sight tucked close to the rail, and both \u003cstrong\u003ewindage and elevation\u003c\/strong\u003e are adjusted tool-lessly by hand - no special wrench or coin required.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe rear sight features dual apertures: a larger \u003cstrong\u003e4.70mm (0.19\")\u003c\/strong\u003e aperture for longer eye relief, low-light conditions, and faster target acquisition, paired with a smaller \u003cstrong\u003e1.75mm (0.07\")\u003c\/strong\u003e aperture for more precise aiming. A spring-loaded folding mechanism snaps the sight up into a locked, upright position with positive engagement.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFinished in \u003cstrong\u003eblack\u003c\/strong\u003e and built for AR-platform rifles, the Strike Industries SPBUS is a budget-friendly BUIS that does not cut corners on the features shooters actually use.\u003c\/span\u003e\u003c\/p\u003e","brand":"Strike Industries","offers":[{"title":"Default Title","offer_id":55041645936962,"sku":"165340","price":77.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_13d196a0-fcd0-40fd-ace8-e4aaddfb7b73.png?v=1784690725","url":"https:\/\/centerfiresystems.com\/products\/strike-industries-spbus-polymer-backup-sights-black-folding-for-ar-15","provider":"Centerfire Systems","version":"1.0","type":"link"}