The Barska 4x28 IR Electro Sight GLX Green Laser Combo is designed specifically for tactical shooters that need a versatile scope for both short distance quick acquisition shooting and medium to long distance shooting. The 4x25 IR Electro Sight is designed with integrated weaver style 7/8 picatinny tactical rails which allow you to customize your scope with additional aiming accessories. Easily attach and use in combination with laser sight, flashlight or secondary sight. Ideally use the scopes external rails to attach a laser sight that is zeroed in at a short distance 50 yards and then zero the scope reticle in at a longer distance 100 yards , this allows you to instantly shoot targets at two different distances. This tactical scope with Long Eye Relief. High Impact Rated, built strong to with stand high caliber recoil shot after shot. Has a standard Black and Red / Green Illuminated Dual Color Mil Dot Reticle with Integrated Weave Barska 4x28 IR Electro Sight Multi-Rail Green Laser Combo