ZEV Combat Night Sights give shooters a durable high visibility iron sight option that works in all lighting conditions. Designed to be identical in form and function to our current fiber optic combat sight set but with the addition of tritium vials for low light illumination. The front sight has a narrow bright orange ring surrounding the tritium dot for daytime use. The rear sight has two tritium dots, has an angled edge to aid in one handed operation of the slide, and does not overhang the RMR optic cut. Due to the low mounting of an RMR with our patented optic cut, it still provides a lower 1/3 co-witness with an RMR mounted. Assembled in the USA with Swiss tritium for maximum brightness.Features: 0.215 tritium front with orange ring Standard rear 12 years warranty coverage and service life of the tritiumDETAILS Material: Steel Color: Tritium Front with Orange Ring For Use With: Glock Pistols