VISM 3.5x32 Blue/Green Illum. Compact Prismatic Optic Riflescope, Urban Tactical Ret, Green Lens Dual Illuminated Green &amp; Blue Urban Tactical glass etched reticle for Quick Target Acquisition A low profile integral NcSTAR compatible Micro Dot Reflex Sight base mount on top of the scope, for mounting an optional secondary sight on top of the scope Integrated Auto Locking Quick Release Mount, fits Weaver/ Picatinny/ MIL-STD 1913 type rails