The FastFire 3 is the best selling red dot sight from Burris. It is available with a 3 MOA or 8 MOA dot.

Light  and  tough,  the  FastFire 3 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.

• Automatic brightness sensor adjusts brightness to match the environmental conditions; also has 3 manual brightness settings
• Battery access is conveniently located on the top of the sight; automatic time-out feature after 8 hours helps battery last up to 5 years

• Available with Picatinny/Weaver mount for mounting on rifles, handguns and tactical shotguns

• Available with No Mount, which allows you to match it with the perfect mount for your use, whether it's sidearm, co-witness on an optic like an AR-332, shotgun, or even the Burris Spotting scope. See a full ist of mounts here.