The HIVIZ FASTDOT H3 SG320FD21 sight set for SIG P320 delivers a low profile, single dot system that seamlessly combines red fiber optic front sight with a green tritium rear sight for reliable illumination around the clock. Designed to fit Sig P320 and P365 models in 9 mm with fixed, non optic ready sights, this all steel, ultra durable sight set is built to fit standard holsters while maintaining a sleek silhouette that minimizes snag and enhances quick target acquisition. The combination of fiber optic and tritium ensures visibility in bright daylight and at night, providing a 24 hour illumination solution through encapsulated tritium and patented technology. This front/rear configuration offers a precise aiming point with the distinctive red front and green rear contrast, aiding shooters in rapid sight alignment across varying light conditions. HIVIZ backs the system with Tritium illumination that remains effective for years, making it a practical upgrade for duty, competition, or personal defense firearms. This sight set combines practical performance with rugged construction, giving shooters a reliable, all-steel upgrade that integrates smoothly with existing holsters and enhances confidence in any light environment.