Burris FastFire 3 1x Red Dot Reflex Sight (21x15mm Window)
The Burris FastFire 3 is a compact, parallax-free reflex sight built around a bright red dot reticle for fast target indexing with unlimited eye relief. Illumination is controlled by a manual push-button with an automatic brightness sensor plus three manual brightness levels.
This model uses a CR1632 battery with top-access battery cap and features an automatic 8-hour shutoff to help extend runtime. Windage and elevation adjustments track in 1 MOA increments for straightforward zeroing.