{"product_id":"fab-defense-fxfrbs-front-rear-folding-back-up-sights-ar-15-m16-m4-low-profile-dual-aperture-rear-sight-black-polymer-and-metal","title":"FAB Defense FXFRBS Front\/Rear Folding Back-Up Sights  AR-15\/ M16\/ M4 Low Profile Dual Aperture Rear Sight Black Polymer and Metal","description":"The Front\/Rear Back-Up Sights comes with the FBS a low-profile, durable, auxiliary front sight. It is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4\/AR-15\/M-16 platforms. The sight can be used as a primary or back-up sight and the ergonomic angel-wing-shaped front shroud helps center the image with any rear sight. The RBS is a low-profile, durable, auxiliary rear sight with Dual apertures are 3mm for longer eye relief mounting, low light, and faster target acquisition; and 1.5mm for shorter eye relief mounting and greater accuracy; each is instantly selectable to match conditions. It is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4\/AR-15\/M-16 platforms. The sight can be used as a primary or back-up sight and the ergonomic angel-wing-shaped front shroud helps center the image with any front sight.","brand":"FAB DEFENSE (USIQ)","offers":[{"title":"Default Title","offer_id":49101694173401,"sku":"126734","price":69.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/1827\/8361\/files\/249512301.png?v=1786967256","url":"https:\/\/bootylen.com\/products\/fab-defense-fxfrbs-front-rear-folding-back-up-sights-ar-15-m16-m4-low-profile-dual-aperture-rear-sight-black-polymer-and-metal","provider":"bootylen","version":"1.0","type":"link"}