{"product_id":"xs-r3d-2-0-glock-21-sup-hght-org","title":"XS Sights R3D 2.0 Night Sights – Glock 21 Suppressor Height, Orange Front","description":"\u003cp\u003eThe XS Sights R3D 2.0 night sights deliver bright tritium illumination for low-light shooting with suppressor-height clearance. The orange front sight ring provides rapid target acquisition in daylight, while the tritium lamp glows green in darkness. Designed for shooters running slide-mounted optics or suppressors on Glock 21 pistols who need a taller sight picture.\u003c\/p\u003e\u003cp\u003eCNC-machined from steel with a defensive rear notch profile, these sights offer co-witness capability with most red dot optics. The front sight's orange photoluminescent ring absorbs ambient light for enhanced visibility in transitional lighting. Factory tritium lamps are rated for 10+ years of constant illumination. Installation requires sight pusher tool or gunsmith fitting. Suppressor height allows clear sight picture over threaded barrels and most pistol optics.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Tritium Night Sights, Suppressor Height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Sight:\u003c\/strong\u003e Green Tritium with Orange Photoluminescent Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Sight:\u003c\/strong\u003e Green Tritium with Defensive Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTritium Lifespan:\u003c\/strong\u003e 10+ Years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearm:\u003c\/strong\u003e Glock 21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e Suppressor Height (Co-Witness with Optics)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-Machined Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Requires Sight Pusher or Gunsmith\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XS Sights","offers":[{"title":"Default Title","offer_id":47940712595711,"sku":"XSGL-R205P-6N","price":138.37,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2886244.jpg?v=1766566489","url":"https:\/\/doublestackstore.com\/products\/xs-r3d-2-0-glock-21-sup-hght-org","provider":"Double Stack Store","version":"1.0","type":"link"}