3DOT HD XR NS YLW GLK 9MM/40SW GL601-C-600835 Manufacturer Model Number: GL601-C-600835 Manufacturer: Trijicon Model: HD XR Night Sight Set Type: Accessory-Lasers and Sights Item Type: Accessory Finish: Black Sights: Yellow Front & Black Rear Shipping Weight: 0.1 Feature: Thin Front Post Feature: Glock 17,17L,19,22,23,24,25,26 Feature: 27,28,31,32,33,34,35,37,38,39 Optic Adjustable Objective: false Optic Reticle Illuminated: false