The Trijicon 1-6X24 VCOG, Variable Combat Optical Gunsight, Is a Rugged Variable powered Riflescope That accommodates Close Quarter Battle (CQB) And Long Distance Marksmanship. It features Superior Glass Quality And Light Gathering capabilities With Zero Distortion. The Bullet Drop compensating And Ranging reticles Allow For The Shooter To quickly And accurately Estimate Range And Apply The Correct Hold. The First Focal Plane Reticle Allows The subtensions And drops To Remain True at Any Magnification. An Integrated Dial Fin Allows Easy Rotation Through The Magnification Range And a Constant Eye Relief Means No Head Or Stock Position adjustments Are Needed. Specifications And Features: 1-6X Magnification 24mm Objective Red Reticle 4" Eye Relief 1 AA Battery 95'-15.9' Field Of View at 100 yards .223 Rem/77 Grain Calibration Horseshoe Dot/Crosshair Reticle Forged Aluminum Housing Led Illumination Source Bullet Drop Compensator 90 MOA Windage And Elevation adjustments