TRIJICON Bright & Tough Green Night Sight For H&K USP Compact (HK08). Tritium-filled glass lamp provides superior illumination in no light or low light conditions. Sapphire Window – Each Trijicon tritium lamp is capped with a sapphire jewel which helps to evenly distribute the light from the tritium lamp as well as protect it from solvents and puncture. All Bright & Tough Night Sights feature a white ring around the glowing dots for daylight visibility. Contains and protects the tritium gas filled lamps from heavy recoil and harsh cleaning solvents. Each sight is manufactured to fit specific handgun makes and models. Gives additional shock protection to tritium filled glass lamps within the aluminum housing. Tritium lamp is warrantied to illuminate for 5 years on orange lamps, 12 years on green and yellow lamps from date of original manufacture. Trijicon Bright & Tough Night Sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same speed as instinctive shooting – and without the need for batteries. Housed in a metal body and cushioned within silicone rubber, Bright & Tough Night Sights feature a unique shock-resistant design. Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture. Contained within aluminum cylinders for additional protection, the lamps are mounted on silicone rubber cushions to withstand shock and heavy recoil. Green lamps are warranted for 12 years from the date of manufacture. Front Blade Width, in. Front Blade Height, in. Overall Front Blade Height, in. Rear Notch Width, in. Rear Blade Height, in. Overall Rear Height, in. Our normal hours of operation are Monday through Friday 8am – 6pm CST. Gritr 7901 Boulevard 26, Suite 200 North Richland Hills, TX, 76180. We are open to the public. Dear Customer: After the Supreme Court’s ruling on South Dakota vs. Gritr is committed to compliance with these new regulations. If you have any questions about this new policy, please contact the Department of Revenue office in your state. We apologize for any inconvenience.