ARO-EVO is the ARO (Advanced Rifle Optic) EVOlved. ARO-EVO features an all-new 26mm housing design that offers a larger sight picture providing the user with more information for improved performance shooting along with our new lower 1/3 co-witness pedestal mount. The newly designed housing mates perfectly with our magnifier series and includes a new lens cap and anti-reflection device system. Additionally, ARO-EVO is available with our new Special Purpose Reticle (SPR) which is a bullet-drop compensating and ranging reticle which balances the performance of a 2MOA dot with accuracy at intermediate distances. ARO-EVO is available with our Special Purpose Reticle or a 2MOA dot only in Red, Green, and Gold. Specifications for Holosun ARO-EVO-SPR 1x26mm Reflex Red Dot Sight w/HM3X Magnifier: Manufacturer: Holosun Color: Black Fabric/Material: 6061-T6 Aluminum Magnification: 1 x Objective Lens Diameter: 26 mm Reticle: 1 MOA 3 Dot BDC, 1.5 MOA Dot, 65 MOA Circle Dot Illumination Color: Red Brightness Settings: 12 Eye Relief: Unlimited Adjustment Click Value: 0.5 MOA Battery Type: Lithium Metal, CR2032 Battery Life: 50000 hours Water Resistance Level: IPX8 Package Contents: Holosun ARO-EVO-SPR 1x26mm Reflex Red Dot Sight w/HM3X Magnifier