| Fits Walther PDP pistols Optics height for DPP & Holosun 509T Tritium illuminated front sight High-visibility yellow front ring Blank rear sight for clean sight picture Lower 1/3 co-witness with red dot optics | CNC-machined steel construction Black nitride corrosion-resistant finish Enhanced daytime contrast & night visibility Ideal for duty, carry, and defensive use Made in USA by Night Fision |