Night Fision Tritium Front Night Sight Set .180in Blade Yellow Front Black. Night Fision CNC machined these Pistol Parts from 4140 steel for reliable strength that won't let you down. The Night Fision Perfect Dot Tritium Front Night Sight w/ U Notch Rear for HK has a black nitride coating that resists wear and corrosion to provide a long service life. If you don't know where to begin when it comes to tritium night sights their patent-pending injection molded sleeve design is the perfect way to mount these sights while providing maximum illumination both day and night. If you need a reliable aiming point look no further than the Night Fision Perfect Dot Tritium Front & Rear Night Sight w/ U Notch Rear for HK. Specifications for Night Fision Tritium Front Night Sight Set: Manufacturer: Night Fision Color: Black Sight Style: OEM Height Fabric/Material: High Quality 4140 Steel Gun Type: Pistol Illumination Type: Tritium Illumination Color: Green Features of Night Fision Tritium Front Night Sight Set 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 Package Contents: Night Fision Tritium Front Night Sight Set Night Fision 1911-325-003-YGZG: Tritium Front Night Sight Set 1911 .180in Blade Yellow Front Black