The Night Fision Optics Ready Stealth Night Sight Set in Yellow Front and Black Back for Walther delivers unmatched daytime and nighttime visibility with Night Fisions patented injection molded sleeve that secures tritium vials and creates The Perfect Dot, outperforming traditional aluminum sleeves and painted rings. This set features the brightest tritium night sights on the market, a domed lens that collimates tritium rays for a sharper sight picture, and CNC machined steel construction finished with a Black Nitride coating to boost wear and corrosion resistance. Built in the USA with Swiss tritium, these sights are designed for rugged reliability and long-term brightness, with installation recommended by gunsmiths to ensure proper alignment on your Walther platform. The Night Fision Stealth Night Sight Set is specifically engineered to fit Walther PDP Compact 4", PDP Full Size 4" and PDP Full Size 4.5" configurations, making it an ideal upgrade for booted aiming precision on a variety of Walther handguns. Elevate accuracy in low light and grab-and-go readiness with a sighting solution that blends durability, visibility, and American craftsmanship.