NIGHT FISION TRITIUM NIGHT SIGHT H&K ORANGE OUTLINE (HAK-126-007-GD-POGZG). Night Fision’s patented injection molded sleeve design holds our tritium vials securely in place using ballistic materials. Night Fision night sights carry more tritium than the average night sight on the market and a domed lens engineered to create the a crisp, defined glow. Brightest Tritium Night Sights on the market. Domed lens collimates tritium rays for a sharper sight picture. CNC Machined out of high quality steel. Black Nitride coating used to improve wear and corrosion resistance. Installation: Gunsmith Recommended, for Installation Information please review our Install Guide. Built in the USA with Swiss Tritium. Color: Orange outline, green tritium inserts. Fits: H&K VP9, VP9SK. 45C Tactical, P30, P30L, P30SK.