Vector Optics Frenzy Red Dot Sight 1x 20x28mm Objective Window 3 MOA Dot Reticle 6061-T6 Black. With optional intensity settings and a Weaver mount these Red Dot Sights by Vector Optics are easy to install and will bring precise shots right to your eye even in low light situations. On the side of the Vector Optics Frenzy 1x Red Dot Reflex Sight you'll find two switches: one that controls the auto shut-off and the other that controls the on/off of the entire sight. When you want a sight that both fits your needs and is easy to install you need the Vector Optics Frenzy 1x28mm Red Dot Reflex Sight. Specifications for Vector Optics Frenzy 1x 20x28mm Red Dot Sight: Manufacturer: Vector Optics Color: Black Finish: Matte Fabric/Material: 6061-T6 Aluminum Magnification: 1 x Objective Window Size: 20x28 mm Reticle: 3 MOA Dot Illumination Type: LED Illumination Color: Red Brightness Settings: 10 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Lens Material: Glass Optical Coating: Multi-Coated Battery Type: CR2032 Battery Quantity: 1 Water Resistance Level: IPX-6 Water Resistant Mark: 1 m Gun Model: Universal Length: 1.8 in Width: 32 mm Height: 35 mm Weight: 2 oz Included Accessories: Base Mount Condition: New Magnification Type: Fixed Red Dot Sights-Footprint: Not Applicable Mount Type: Weaver Adjustment Range: 45 MOA Gun Rail: Picatinny Weaver Features of Vector Optics Frenzy 1x 20x28mm Red Dot Sight For close-in work and general shooting Extra-large window size Weaver mount & compatible for VT footprint (can do TRI footprint too) On/off switches on side complete user control and 4 hours auto shut-down Package Contents: Vector Optics Frenzy 1x 20x28mm Red Dot Sight Retail package Weaver mount Rubber lens cover Hex keys Cleaning cloth Vector Optics SCRD-35: Frenzy Red Dot Sight 1x 20x28mm Objective Window 3 MOA Dot Reticle 6061-T6 Black