The 3 Tactix PRD (pistol red dot) red dots, focus on performance and reliability for everyday use. The integrated hood shields the dot glass from abrasion, impacts, and sunlight ensuring the dot remains visible no matter the obstacles. With three red illuminated reticle options to choose from to adjust the dot to personal preference. Enjoy 50,000 hours of battery life, and the simplicity of a side-loading battery tray that doesn&';t require unmounting the optic to keep it powered. The 3 Tactix PRD 3 automatically turns on when motion is detected.