Light and tough, the FastFire series puts an unmistakable, bright red dot on your target to give you an immediate speed and accuracy advantage.  Can be used as a primary sight or paired on top of an existing sight.
The FastFire™ 3 provides 3 manual brightness settings, plus an automatic brightness adjustment setting.
The top-mounted battery offers easy access, without removing the sight.
Windage and elevation adjustments are accurate and easy to use.

Bright red dot allows for fast target acquisition and easy aiming
Compact and lightweight, so it won’t affect firearm balance or handling
1x magnification allows both-eyes-open shooting, for enhanced awareness and target acquisition
Parallax-free, for better accuracy
Mounts to almost anything—including handguns, rifles, and shotguns—using Burris mounting systems

Automatic brightness sensor adjusts brightness to match the environmental conditions; also features 3 manual brightness settings
Windage and elevation adjustments make optic fine-tuning easy; no special tool required
High-grade optical glass provides excellent brightness and clarity, with lasting durability
Index-matched, Hi-Lume® multicoating provides low-light performance and glare elimination
Shockproof design stands up to years of punishing recoil
CR1632 battery included
Battery access is conveniently located on the top of the sight
Comes with our Burris Forever Warranty™

  • Reticles:
    • FastFire™ 3-MOA Dot (RS-BU300234)
    • FastFire™ 3-MOA Dot (RS-BU300235)
    • FastFire™ 8-MOA Dot (RS-BU300236)
    • FastFire™ 8-MOA Dot (RS-BU300237)
  • Reticle Color(s): Red
  • Clear Objective Lens Diameter: 21×15 mm
  • Finish: Matte
  • Mount:
    • Picatinny Mount (RS-BU300234)
    • None (RS-BU300235)
    • Picatinny Mount (RS-BU300236)
    • None (RS-BU300237)
  • Eye Relief: Unlimited
  • Click Value: 1 MOA
  • Elevation Adjustment, Total Capability: 115 MOA (Example: 50 MOA is roughly 25 MOA from center.)
  • Windage Adjustment: 86 MOA (Example: 50 MOA is roughly 25 MOA in any direction from center.)
  • Parallax/Focus: Parallax-free
  • Length: 1.9 in.
  • Weight:
    • 1.5 oz. (RS-BU300234)
    • 0.9 oz. (RS-BU300235)
    • 1.5 oz. (RS-BU300236)
    • 0.9 oz. (RS-BU300237)
  • Illumination Control: Manual push-button & automatic brightness adjustment
  • Illumination Settings: 3 manual brightness levels; automatic setting reactive to environment
  • Battery: CR1632