OverviewThe Strikefire II red dot sight is a rugged and reliable choice for a variety of applications. For fast target acquisition from an AR-15 to a shotgun, this sight provides improved accuracy and performance no matter the occasion. Compared to other red dot sights, the Strikefire II has a larger field of view and can be mounted to almost any height using most common 30mm rings. For one of the most versatile scopes around at a price that won't break the bank, choose the Strikefire II.Battery Life: 80,000 hours on setting 6.The lower 1/3 co-witness cantilever mount model is ideal for AR platforms, positioning the optic bore center 40 mm above the base surface.StrikeFire II Red Dot Dimensions Dual use for Shooting Tactical / HuntingIncluded in the BoxCantilever ring mountT-15 Torx wrenchCR2 batteryFlip Cap optic covers Mount Type Lower 1/3 Co-Witness CantileverMagnification 1xObjective Lens Diameter 30 mmDot Size 4 MOAEye Relief UnlimitedAdjustment Graduation 1/2 MOATravel Per Rotation 25 MOAMax Elevation Adjustment 100 MOAMax Windage Adjustment 100 MOAParallax Setting Parallax FreeLength 5.6 inchesWeight 7.2 oz