Overview The 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 / Hunting Included in the Box Cantilever ring mount T-15 Torx wrench CR2 battery Flip Cap optic covers Mount Type Lower 1/3 Co-Witness Cantilever Magnification 1x Objective Lens Diameter 30 mm Dot Size 4 MOA Eye Relief Unlimited Adjustment Graduation 1/2 MOA Travel Per Rotation 25 MOA Max Elevation Adjustment 100 MOA Max Windage Adjustment 100 MOA Parallax Setting Parallax Free Length 5.6 inches Weight 7.2 oz