SAA AIM IV Red Dot Sight (3 MOA)

SAA AIM IV Red Dot Sight (3 MOA)
Replica of QD Red Dot Sight 
Adjustable Brightness
Moist-Resistance, Stronger 
Mount on any 20mm weaver standard rail 
Easy Hook Up, Install in just seconds 
Extremely good looking on rifles such as M4 / M16 / etc... 
Operated by 1x AA Battery 

- Battery Life：Daytime Indoor 600 Hours. 
- Parallax：Less Than 3 MOA. 
(Battery not include)