AMERIGLOA(R) Optic Compatible sets provide a precise, elevated co-witness sight picture for slide-mounted red dot optics and serve as reliable back-up sights. SPECS Fits Make: SIG SauerA(R) Front Sight Style: Tritium Front Sight Finish: Case Hardened Front Tritium Color: Green Front Outline Color: White Front Blade Width: 0.125 in. (3.18mm) Overall Front Height: 0.35 in. (8.89mm) Rear Sight Style: 2-Dot Tritium Rear Notch Shape: Square Rear Sight Finish: Case Hardened Rear Tritium Color: Green Rear Outline Color: White Rear Blade Height: 0.332 in. (8.43mm) Overall Rear Height: 0.423 in. (10.74mm) Mfg: Ameriglo