Specification:

Up to 600 meter 5.56/.223 Green illuminated (day light only) BDC reticle
Powered by fiber source, providing more bright environment and reticle illumination all day.
No on/off switch 
Adjustable windage and elevation
Multi-coated front lens.
Parallax free.
Easily installed on any 20 mm Picatinny rail.
Objective diameter: 32 mm
Magnification: - 4X , Micro Red Dot - 1X
Eye relief: 1.5"