The FastFire C, Burris Optics' latest innovation in red dot optics, designed specifically for sub-compact and micro-compact pistols used in everyday and concealed carry. Weighing less than one ounce, the FastFire C offers durability and reliability, featuring an "Always On" technology with a 25,000-hour run time, powered by a CR2032 battery. Its low profile allows for absolute or 1/3 co-witness with standard open sights, eliminating the need for elevated sights.Specifications and Features: Magnification: 1x Reticles: FastFire 6-MOA Dot Reticle Colors: Red Finish: Matte Eye Relief: UNlimited Click Value: 4 MOA Elevation Adjustment, Total Capability: 80 MOA Length: 1.61" Weight: 0.44 Oz Illumination Control: Push Button Illumination Settings: 5 brightness settings plus Burris Intelligent Autobright Battery: CR2032