Perfect for decreasing reacquisition time, the Leupold DeltaPoint Pro Red Dot Gun Sight is ideal for any shooter looking to enhance their shooting ability. This Reflex Sight from the shooting experts at Leupold is made with a lightweight aluminum housing that is shrouded by spring steel, while the aspheric lens generates a wide field-of-view with some of the best image quality ever seen in a reflex sight. Patented Motion Sensor Technology inside of the Leupold DeltaPoint Pro Reflex Sight discerns any movement of the sight and automatically activates the illumination which is inset into a light tunnel to reduce the light signature in tactical situations. The tool-less, spring-actuated battery compartment in the Leupold Delta Point Pro Red Dot Sight makes changing the battery quick and easy while maintaining an industry-leading 66 feet of waterproofness. Choose the Leupold DeltaPoint Pro Waterproof Red Dot Reflex Sight (with no mount). Is DeltaPoint Pro Good for an AR 15? Yes, the DeltaPoint Pro is a popular red dot sight that is commonly used on AR-15 rifles. It's known for its durable construction, wide field of view, and clear glass. The DeltaPoint Pro is designed to be rugged and withstand recoil, making it suitable for use on firearms like the AR-15. What Does MOA Mean on a Red Dot Scope? MOA stands for Minute of Angle, and it is a unit of angular measurement. In the context of a red dot scope or sight, MOA is used to describe the adjustment and size of the reticle (the aiming point). In terms of the reticle size, a red dot sight with a 2 MOA dot means that the dot covers 2 inches of the target at 100 yards. A smaller MOA value typically results in a finer and more precise aiming point, while a larger MOA value may be faster for target acquisition but cover more of the target. What Is a 2.5 MOA Dot? A 2.5 MOA (Minute of Angle) dot refers to the size of the aiming point (dot) in a red dot sight. The term "2.5 MOA" indicates that the dot's diameter is designed to subtend 2.5 minutes of angle when viewed through the sight. In practical terms, at 100 yards, a 2.5 MOA dot would cover an area of approximately 2.6175 inches (2.5 MOA * 1.047 inches per MOA). The smaller the MOA value, the finer and more precise the aiming point will be. A 2.5 MOA dot is considered a moderate size, offering a good balance between precision and visibility. Specifications for Leupold DeltaPoint Pro 1 x 2.5 MOA Red Dot Sight: Manufacturer: Leupold Finish: Matte Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 0.71 - 1.05 in Objective Window Size: 25.7 x 17.5 mm Reticle: 2.5 MOA Dot Illumination Type: LED Illumination Color: Red Brightness Settings: 8 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Optical Coating: Diamond Coat Battery Type: CR2032 Battery Quantity: 1 Battery Life: 300 hours Operating Temperature: -20 - 120 Fahrenheit Water Resistance Level: Waterproof Water Resistant Mark: 33 ft Shockproof: Yes Fogproof: Yes Gun Make: Universal Gun Model: Universal Length: 1.82 in Width: 1.31 in Height: 1.3 in Weight: 1.95 oz Condition: New Magnification Type: Fixed Quantity: 1 Storage Temperature: -40 - 160 Fahrenheit Adjustment Range: 60 MOA Features of Leupold DeltaPoint Pro 1x 2.5 MOA Red Dot Sight: Use for hunting or tactical situations; Motion Sensor Technology; Extended battery life; Locking adjustment system; Tool-less, spring actuated battery compartment; Lightweight aluminum housing; Shrouded in rugged spring steel Package Contents: Leupold DeltaPoint Pro 1x 2.5 MOA Red Dot Sight 3V Lithium battery (CR 2032) Protective cover (x2) M4x.7x15.8mm Torx head screws for installing the sight on the mounting plate Torx T-15 wrench 1/16 Hex wrench Operating Instructions