AmeriGlo Pistol Tritium Night Sights Glock 20212930313236 Classic Green Front Yellow Rear. These Tritium Pistol Sights by AmeriGlo Night Sights - Trusted by Professional and Amateur Shooters The World Around are constructed out of steel which means they can take a beating and are built to last. Plus these Ameriglo Tritium Sights don't require any batteries or external power sources making them incredibly efficient illuminated sights. That also means that there's no required maintenance or upkeep for these sights to continue working. These sights can help you quickly acquire your target both during the day and at night. Pick up your Ameriglo Steel Night Sights today to enhance your iron sights. Please note that you should consult a professional gunsmith to install these sights. Specifications for AmeriGlo Pistol Tritium Night Sight: Manufacturer: AmeriGlo Gun Make: Glock Gun Model: Glock 21 Glock 36 Glock 30 Glock 29 Glock 32 Glock 20 Color: Black Front Sight Color: Green Fabric/Material: Steel Front Material: Tritium Gun Type: Pistol Additional Features: Classic Green Front Features of AmeriGlo Night Sights: Green tritium lamps Visible under all lighting conditions Package Contents: Ameriglo Night Sights Ameriglo Tritium Night Sight Set Classic Green FrontYellow Rear for Glock 20212930313236 - GL122