UTG ACCU-SYNC 45 Degree Angle Flip Up Rear Sight.
Precision Machined from Aircraft Aluminum and Finished in Matte Black45 Degree Angled Offset Allows Quick Access and Transition to Iron Sights while Running a Larger Primary Magnified OpticPosi-lock Retention Detent Prevents Sight Tower from Collapsing when in UseWindage Adjustment Wheel Provides Tool-free Adjustment of the Dual Aperture SightUtilizes a Single locking Torx Screw with Low Profile Mounting Base and Square-shaped Integral Recoil Stop for a Secure Zero Hold and Return to Zero on MIL-STD-1913 Picatinny RailsDesigned to Match MT-745, UTG ACCU-SYNC® AR15 45 Degree Flip-up Front Sight