Spur brightness controls. Photo courtesy of Nikon.
SPUR has a long battery life running for 15,000 hours on a single CR1632 lithium battery at the lowest setting. A new lithium battery is provided with the SPUR. The battery compartment is accessible from the top and the battery can be replaced easily without removal of the sight or changing the settings.
The SPUR is simple to use, There is a tool included for opening the battery compartment and making sight adjustments. Scan the instructions, install the provided battery and press a button, A 3 MOA red dot will appear in the window and you can adjust the brightness by pressing the plus or minus buttons.
The base attaches to any Picatinny rail. If you have AR type sights, you will need a one riser. Windage and elevation are adjusted with a tiny screwdriver provided with the sight. There are distinct clicks as you make adjustments. Every click of the adjustment screw moves the strike of the round 1 inch at 100 yards in the direction indicated on the screw.
Specifications for Nikon P-Tactical Spur Red Dot Sights: