The Burris FastFire 3 is available with a 3 MOA or 8 MOA red dot. Light and strong, the FastFire 3 places an indispensable bright red dot on your target to give you an instant speed and accuracy advantage. You can use the FastFire 3 as a primary sight, but you can also mount it on an existing sight! The automatic brightness sensor adjusts the brightness to the ambient conditions, the FastFire 3 also has 3 manual brightness settings. The battery is located at the top of the visor; due to the automatic time-out function, the battery automatically turns off after 8 hours of use and therefore the battery lasts up to 5 years!

Specifications:
Magnification: 1x
Objective lens diameter: 21x15 mm
Reticle colour(s): Red
Finish: Matte
Mount: Picatinny Mount
Eye relief: Unlimited
Click value: 1 MOA
Altitude adjustment: 115 MOA
Wind adjustment: 86 MOA
Length: 15.24cm x 12.7cm x 5.08cm
Illumination settings: 3
Reticle: 3 MOA; Save Dot
Battery: CR1632