Trijicon ACOG TA31DOC w/ Doctor Optic and TA51 flattop mount. The Trijicon TA31DOC ACOG 4x32 Rifle Scope is equipped with the BAC Dual Illuminated Red Crosshair Reticle. The Rifles Scope has a 7.0 MOA Docter Optic red dot sight mounted on top for close quarters. Adapted from the battlefields, US Forces have begun improving this proven Trijicon ACOG scopes by adding a small Red Dot sight on top for close encounter missions. Trijicon has now created a similar model for the public, the TA31 DOC. The main Trijicon scope provides a dual-illuminated reticle using fiber optics and tritium for bright aiming point in any light condition. The ranging reticle allows for bullet drop compensation for the .223.5.56 round out to 600 meters without any manual adjustments. A Docter Optic Sight sits on top with a 7mm aiming dot. The gun sight includes a Trijicon TA51 Flat Top Adapter. The TA31DOC also includes: 1 7.0 MOA DocterŽ Red Dot Sight attached with mount (MS02) 1 Flattop Adapter for Military style rail (TA51) 1 4x32 Scopecoat (TA64) 1 Medium sized Pelican Case (TA88) 1 Lenspen (LENSPEN) 1 Trijicon Logo Sticker (PR15) 1 ACOG BAC Manual 1 Warranty Card Specifications: Magnification 4 Objective Size 32 Bullet Drop Compensator Yes Length (in) 5.8 in Weight (oz) 15.10 Illumination source Fiber optics/tritium Reticle Pattern crosshair Day Reticle Color Red Night Reticle Color Red Calibration .223 Bindon Aiming Concept Yes Eye Relief (in) 1.50 Exit Pupil (mm) 8.00 Field of View (°) 7.00 Field of View @ 100yrds (ft) 36.80 Adjustment @ 100 yds (clicks/in) 3 Tube Size N/A Mount TA51 Mount On/Comes With Flattop Housing Material Forged Aluminum Special Order No