{"product_id":"xs-r3d-2-0-glock-21-green","title":"XS Sights R3D 2.0 Night Sights for Glock 21 – Green Tritium Front","description":"\u003cp\u003eThe XS Sights R3D 2.0 night sight set delivers 24\/7 visibility with a green tritium front sight and blacked-out rear for fast target acquisition in any light condition. The high-contrast front sight draws the eye immediately, while the wide U-notch rear speeds sight alignment under stress. Designed for Glock 21 pistols chambered in .45 ACP.\u003c\/p\u003e\u003cp\u003eCNC-machined from steel with a durable Fortress Finish coating, these sights install directly into factory dovetails with minimal fitting. The tritium front lamp is protected by an orange photoluminescent glow ring that charges in ambient light for additional visibility at dusk and dawn. The rear sight's shallow V-notch provides a clear, uncluttered sight picture for defensive and duty use.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Night Sight Set (Front + Rear)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTritium Color:\u003c\/strong\u003e Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Sight:\u003c\/strong\u003e Blacked-Out with White Stripe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Sight Accent:\u003c\/strong\u003e Orange Photoluminescent Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotch Style:\u003c\/strong\u003e Wide U-Notch Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel with Fortress Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Factory Dovetail (Minimal Fitting Required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Glock 21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e XSGL-R202P-6G\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XS Sights","offers":[{"title":"Default Title","offer_id":47940711383295,"sku":"XSGL-R202P-6G","price":128.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2886237.jpg?v=1766566310","url":"https:\/\/doublestackstore.com\/products\/xs-r3d-2-0-glock-21-green","provider":"Double Stack Store","version":"1.0","type":"link"}