Firefield FF13043 Tactical Rifle 3-12x 40mm AO Obj 39.30-13.10 ft @ 100 yds FOV 1" Tube Black Matte Finish Illuminated Red/Green Mil-Dot (SFP)Brand Firefield Category Rifle Scopes Focal Plane Second Model Tactical Rifle Magnification 3 12x Proofs Fog Shock Waterproof Reticle Illuminated Red Green Mil Dot Objective 40mm AO Tube Diameter 1" Windage Adjustment 90 MOA Battery CR2032 Adj Size . 25 MOA Coating Type Blue Elevation Adjustment 90 MOA Exit Pupil Diameter 13. 30 3. 30mm Eye Relief 3. 30" 2. 90" Field of View 39. 30 13. 10 ft @ 100 yds Length 15. 70" Mount Type Picatinny Weaver Optic