{"product_id":"truglo-brite-site-tfo-for-glk-21-g-y","title":"TRUGLO Brite-Site TFO Tritium Fiber-Optic Sights for Glock 21 – Green\/Yellow","description":"\u003cp\u003eThe TRUGLO Brite-Site TFO (Tritium Fiber-Optic) sights combine tritium night sight technology with fiber-optic brightness for 24-hour visibility. Green front and yellow rear fiber-optic inserts deliver rapid sight acquisition in daylight, while tritium capsules provide a dependable glow in low-light and complete darkness. These sights are purpose-built for Glock 21 pistols chambered in .45 ACP.\u003c\/p\u003e\u003cp\u003eThe TFO design uses a hermetically sealed capsule to protect both the tritium vial and fiber-optic element. The fortress-style steel construction is CNC-machined for precise fit and features a snag-resistant profile suitable for concealed carry and duty use. Installation requires a sight pusher tool or gunsmith services. The contrasting green front and yellow rear configuration helps shooters naturally align the front sight during target transitions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSight Type:\u003c\/strong\u003e Tritium Fiber-Optic (TFO) Combination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Sight Color:\u003c\/strong\u003e Green Fiber-Optic \/ Tritium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Sight Color:\u003c\/strong\u003e Yellow Fiber-Optic \/ Tritium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearm:\u003c\/strong\u003e Glock 21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e CNC-Machined Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Snag-Resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Requires Sight Pusher Tool or Gunsmith\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisibility:\u003c\/strong\u003e Day and Night (24-Hour)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRUGLO","offers":[{"title":"Default Title","offer_id":47940218781951,"sku":"TG131GT2Y","price":92.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1296226.jpg?v=1766554295","url":"https:\/\/doublestackstore.com\/products\/truglo-brite-site-tfo-for-glk-21-g-y","provider":"Double Stack Store","version":"1.0","type":"link"}