Primary Arms GLx 1x Reflex Mini Red Dot Sight ACSS Vulcan Reticle Black. It features a top-loaded CR1632 battery compartment a large aiming window and our patented ACSS Vulcan Dot reticle system. Specifications for Primary Arms GLx 1x Mini Reflex Red Dot Sight: Manufacturer: Primary Arms Color: Black Magnification: 1 x Objective Lens Diameter: 26 mm Reticle: ACSS Vulcan Illumination Type: LED Illumination Color: Red Adjustment Click Value: 0.5 MOA Battery Type: Lithium Metal CR2032 Weight: 1.07 oz Red Dot Sights-Footprint: RMR Package Contents: Primary Arms GLx 1x Mini Reflex Red Dot Sight Battery Primary Arms 810051: GLx 1x Reflex Mini Red Dot Sight ACSS Vulcan Reticle Black