Ncstar Tactical Red/Green Dot Sight w/Cantilever Weaver Mount. Delivering the maximum vision of your target without losing sight of your surroundings the NCStar Red and Green Dot Sight DMRG130 delivers unlimited eye relief and settings for 5 brightness levels on both the Red and Green Dots. Included with this high performance red dot sight is a 30mm cantilever mount ideal for attaching to your favorite rifle's weaver-base mount. The Red Green Dot DMRG130 B-Style Sight from NcSTAR is built with tactical-grade standards for excellent operation in the most difficult of environments. Specifications for Ncstar Tactical Red/Green Dot with Cantilever Weaver Mount: Manufacturer: NcSTAR Color: Black Magnification: 1 x Objective Lens Diameter: 30 mm Reticle: 3 MOA Dot Illumination Color: Red Green Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Battery Type: CR2032 Length: 4.35 in Width: 3.45 in Height: 3 in Weight: 11.3 oz Magnification Type: Fixed Lens Finish: Silver Red Dot Sights-Footprint: Not Applicable Features of NC-Star 1x30 B-Style Red Dot Sight: Unlimited eye relief. Red and Green Dot. Black anodized aluminum construction. Five brightness settings for each Red and Green Dot. Includes 30mm Cantilever Mount. Ocular and Objective Flip Up Lens Covers. LED(Light Emitting diode) 100percent safe for eyes Package Contents: NCStar B-Style 1x30 Red Dot Sight DMRG130 Ncstar Tactical Red/Green Dot Sight w/Cantilever Weaver Mount DMRG130