Introducing 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. Equipped with an Intelligent Auto-Bright system and offering manual illumination settings, this compact red dot ensures optimal visibility in any light condition. Includes Rear Sight Post, Shim, CR2032 Battery, and Mounting Hardware. Burris 300239 FastFire C Matte Black 1 x 0.87" x 0.67" 6 MOA Red Dot Reticle Subcompact/Micro Pistols.