HIVIZ® Tritium NiteSight Front and Rear Sight Set for Ruger® Security-9®. HIVIZ® Tritium sights feature a laser-sealed tactical tritium lamp with Safire lens to provide years of service and stand up to the roughest use. The white halo and tritium combine for ultra-fast sight acquisition in all lighting conditions and quick target acquisition in normal lighting conditions. Made in the USA by HIVIZ® Shooting Systems.. HIVIZ® Tritium illuminated sight warranty information: HIVIZ® Tritium sights are covered for a period of 10 years according to the date stamp on the product against tritium failure resulting in total loss of illumination due to defects in the workmanship or material during normal use. The original owner is entitled replacement of the entire sight pending inspection for misuse. This warranty does not cover failure due to damage that is the result of abuse, or accidental or improper use and or damage resulting from improper installation methods. Important Notice: This product contains tritium gas "H3" and is regulated by the US NRC. The Purchaser is exempt from any regulatory requirements. Do not attempt to disassemble the sight.