NEW Improved: Locking Quick Release mount. More compact QR Lever. NEW Improved: Scope Centerline height raised to AR15 1?'' scope height. More comfortable scope height for AR15s and more room for low profile Rear BUIS. Lowered BDC Turret height, for lower mounting height for the optional new 34mm Micro Dot mount and optic. Tactical scope for mid to long range, Zoom magnification for further target acquisition. Dual Blue & Green illumination for different lighting conditions. Includes Gen 2 Red Micro Dot Optic for quick target acquisition for Close Range engagements. Scope is at the proper height for M4/M16 and AR15 rifles and carbines. Bullet Drop Compensation for 55 grain FMJ 5.56 NATO. Locking Quick Release mount .