Designed for sub-compact and micro-compact pistols, the Burris FastFire C represents the pinnacle of inchsmart inch optics in a highly compact package. Weighing less than one ounce, the FastFire C provides extreme durability and reliability, with inchAlways On inch Intelligent Auto-Bright technology that delivers 25,000 hours of battery life on a single CR2032 battery. Intelligent Auto-Bright automatically adjusts the reticle depending on ambient light conditions. The brightness sensor detects the light level in the direction of the target and modifies the intensity of the dot accordingly so that it's not overpowering in low light while remaining highly visible in bright daylight. When holstered or stored, the optic goes into ultra-low brightness setting, saving the battery for when you need it. But when drawn, shake-to-wake technology brings the FastFire C to life in an instant, giving you a 6 MOA reticle that's easy to put on target. Its low-profile design allows for absolute or 1/3 co-witness with standard open sights, eliminating the need for elevated sights. For your convenience, the FastFire C comes with an optional rear sight post that can be used in conjunction with your firearm's original front iron sight. And best of alla |it's backed by the legendary Burris Forever Warranty With the Burris Forever Warranty there are no cards or questions. When you choose Burris, you can be confident that the optic you purchased is built to exacting standards. Burris is so confident in their craftsmanship that they back this optic with the Burris Forever Warranty. Burris will repair or replace your optic if it is damaged or defective. Plus, the warranty is automatically transferred to future owners. There is no repair or replacement charge and you won't need to answer questions, find a receipt, or keep a warranty card. 6 MOA red dot reticle 5 manual brightness settings plus Burris Intelligent Auto-Bright Intelligent