Description Zoptek Infinity ZTK2632: Compact 2-6×32 Red/Green Mil-dot Scope Reticle Type: Mil-Dot; Magnification: 2-6 x 32mm Illuminated Type: Red and Green with 5 level brightness adjustment Material: Aircraft-Grade Aluminum Alloy; Length: 210mm Field Of View(@100yds/@100mm): 15.71-41.96; Eye Relief(mm): 75.0-95.0 Exit Pupil(mm): 4.6-14.0; Battery: CR 2032 x 1 (Not Included) Length 215mm