The 3x30mm model is designed for law enforcement and military applications- where the combination of ample magnification, low light capability and long eye relief make the TA33G-12 the ACOG of choice. The TA33G-12 ACOG Scope features Dual Illumination Green Crosshair .308 Ballistic Reticle.Specifications:- Magnification: 3x- Objective Size: 30- Bullet Drop Compensator: Yes- Length: 6.10- Weight: 11.64oz with Mount- Illumination Source: Fiber Optics and Tritium- Reticle Pattern: Crosshair- Day Reticle Color: Green- Night Reticle Color: Green- Calibration: .308- Bindon Aiming Concept: Yes- Eye Relief: 1.90- Exit Pupil: 10mm- Field of View (Degrees): 3.70?O- Field of View @ 100 yards (ft): 19.30 ft.- Adjustment @ 100 yards (clicks/in): 4 clicks/in.- Mount: TA60- Mount Comes With TA60- Housing Material: Forged Aluminum