The Trijicon ACOG 3.5x35 Red LED Illuminated Rifle Scope .223 Horseshoe/Dot Reticle w/ TA51 Mount, Black, 100493 Objective Lens Diameter: 35 mm, Magnification: 3.5 x, Reticle: Illuminated Red TA110-D-100493 Horseshoe, Exit Pupil: 0.39 in, Illumination Color: Red, Field of View, Angle: 5.5 degrees, Eye Relief: 2.4 in, Color: Black, Weight: 16.8 oz, Adjustment Click Value: 1/3 MOA, Length: 8 in, Adjustment Type: MOA, Illumination Type: LED, Battery Type: AA Alkaline, AA Lithium, Width: 3 in, Adjustment Range: 40 MOA, Height: 2.6 in, Brightness Settings: 6, Battery Life: 12000 hours, Shockproof: Yes, Fogproof: Yes, Battery Quantity: 1, Package Type: Polymer Hard Case, Included Accessories: Mount Comes With TA51, Magnification Type: Fixed