Burris Fastfire C 300239 Red Dot Sight - 6 MOA, Black

The Burris FastFire C red dot sight is a lightweight, pistol-mounted optic engineered for concealed carry, everyday defense, and competitive shooting. At less than an ounce, this compact reflex sight won't throw off your gun's balance or handling characteristics—crucial for sub-compact and micro-compact pistols where every tenth of an ounce matters. The 6 MOA aiming dot strikes the right balance between fast target acquisition and precision, letting you stay on threat while maintaining situational awareness with both eyes open.

What sets the FastFire C apart in the red dot market is its Intelligent Auto-Bright system, which automatically adjusts illumination based on ambient light and detects when you're actually using the gun versus storing it. No more fumbling with manual brightness settings in changing conditions, and no more worrying about a dead battery from accidental activation. The "Always On" technology runs for 25,000 hours on a standard CR2032 battery—that's roughly three years of continuous operation. Unlike shake-awake systems, the FastFire C stays powered and ready, giving you one less variable to manage in a defensive situation.

The sight sits low enough to cowitness with your gun's standard iron sights (absolute or 1/3 cowitness depending on your setup), so you maintain a usable backup aiming system if the optic fails. Windage and elevation adjustments offer 80 MOA of travel and require no special tools, while an included 1° shim provides an additional 60 MOA of elevation adjustment if you need it. The removable rear sight post mounts with the same screws as the optic itself, giving you flexibility to run irons, a co-sighted dot, or optic-only depending on your mission.

The housing is machined from advanced composite polymers, engineered to handle pistol recoil and abuse without shifting zero. This is a purpose-built carry optic that works as hard as you do—no unnecessary features, no bloat, just a tough, reliable red dot designed around how defensive and competitive pistol shooters actually work.

Key Features

• Weighs less than 1 ounce—minimal impact on gun balance and concealed carry comfort
• 6 MOA red dot for fast target acquisition on defensive and competition pistols
• Intelligent Auto-Bright system adapts illumination to lighting conditions automatically
• 25,000-hour battery life on single CR2032 cell
• Both-eyes-open shooting with virtually parallax-free optics
• Absolute or 1/3 cowitness with standard open sights
• 80 MOA windage and elevation adjustment (tool-free)
• Removable rear iron sight post for redundancy
• Advanced composite polymer frame rated for pistol recoil
• Includes 1° shim for extended elevation adjustment

Specifications

Frequently Asked Questions

What pistols is the FastFire C designed for?

The Burris FastFire C is engineered specifically for sub-compact and micro-compact pistols used in concealed carry and everyday defense. Its low profile and sub-one-ounce weight make it ideal for firearms where minimal bulk and slide weight are critical. It will cowitness with standard iron sights, so mounting compatibility depends on your specific pistol's footprint—confirm your gun accepts FastFire C mounts before ordering.

How does the Intelligent Auto-Bright system work?

The Intelligent Auto-Bright system monitors ambient light levels to automatically adjust the dot's brightness. It also senses motion and use patterns to determine whether the optic is in active use or being stored, automatically powering down when inactive to conserve battery life. This is superior to "shake awake" systems because the optic stays on and ready whenever you need it without relying on movement detection.

Can I use the FastFire C with my iron sights?

Yes. The FastFire C is designed to cowitness with your firearm's original iron sights—either absolute cowitness or 1/3 cowitness, depending on your gun's sight height. It also includes a removable rear post sight that installs and removes using the same mounting screws as the optic, giving you a backup aiming system and adding redundancy for defensive use.

What battery does it use and how long will it last?

The FastFire C runs on a standard CR2032 battery. With the "Always On" technology, you get roughly 25,000 hours of continuous run time—approximately three years if the optic stays powered 24/7. Because the Intelligent Auto-Bright system manages power intelligently, real-world battery life in normal use will likely stretch much longer.