The Trijicon Suppressor/Optic Height Sights (brand part number GL204-C-600689) are three-dot tritium night sights built tall enough to co-witness with a suppressor or a mounted red dot on the Glock 20 and 21 large-frame pistols. Trijicon designed these Bright & Tough sights to increase night-fire shooting accuracy by as much as five times over conventional sights, and they do it with the same speed as instinctive shooting, without needing batteries. Each lamp is housed in an aluminum cylinder and cushioned in silicone rubber for a shock-resistant design that shrugs off heavy recoil, and a sapphire jewel caps each lamp to distribute light evenly while protecting it from solvents and punctures. The green tritium lamps are warranted for 12 years from the date of manufacture, and Trijicon recommends professional installation.

Key Specifications

• Suppressor/optic height profile co-witnesses with a suppressor or mounted red dot.
• Three-dot tritium configuration with a green front and white outline, white tritium rear.
• Increases night-fire accuracy up to 5 times over conventional sights.
• No batteries required.
• Shock-resistant design with a metal body cushioned in silicone rubber.
• Sapphire jewel lamp caps distribute light and protect against solvents and punctures.
• Aluminum cylinder lamp housings for added protection.
• 12-year tritium warranty on the green lamps.
• Front sight width of 0.144 inch, front sight height of 0.403 inch, rear sight height of 0.451 inch.
• Fits Glock 20 and 21 large-frame pistols.

Frequently Asked Questions

Will these sights co-witness with a suppressor or red dot? Yes, they are built to suppressor/optic height specifically to co-witness with either.

Do these sights need batteries? No, they use tritium lamps that glow without any battery or charging.

How long is the tritium warranted? The green tritium lamps carry a 12-year warranty from the date of manufacture.

Buy the Trijicon Suppressor/Optic Height Sights

Upgrade your Glock 20 or 21 with sights that work with a can or a red dot mounted. Order this Trijicon sight set from our Lubbock, Texas gun shop for fast, insured shipping, and browse more gun sights.