Elcan Specter DR 1-4x 3MOA XOPTEK Rifle Scope 5.56 BDC Reticle Black. The worlds first truly dual field of view combat optical sight the SpecterDR switches instantly from a 4x magnified sight to a 1x CQB sight with the throw of a lever. Unlike zoom sights the SpecterDR offers an optimized optical path and identical eye relief in both 4x and 1x modes. Depending upon the situation the user may adjust the sight to illuminate the crosshair or just a brilliant red dot in the center. In 1x mode the SpecterDR has by far the largest field of view in the industry. In 4x mode the SpecterDR offers a generous field of view long eye relief and ELCANS legendary crystal clear image. Specifications for Elcan Specter DR 1-4x24mm 3MOA XOPTEK 30mm Tube Rifle Scope: Manufacturer: Elcan Objective Lens Diameter: 24 mm Magnification: 1 - 4 x Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Exit Pupil: 8 mm Illumination Color: Red Eye Relief: 70 mm Weight: 655 g Adjustment Click Value: 0.5 MOA Adjustment Type: MOA Illumination Type: LED Battery Type: CR2032 Fabric/Material: Aluminum Shockproof: Yes Gun Type: Rifle Package Contents: Elcan Specter DR 1-4x24mm 3MOA XOPTEK 30mm Tube Rifle Scope Scope Covers & ARD Elcan DFOV4-B146-C10-X3: Specter DR 1-4x 3MOA XOPTEK Rifle Scope 5.56 BDC Reticle Black