Blackhawk AR15/M16 Same Plane Sight Aperture

This drop-in replacement provides a large aperture for quick sight acquisition in close quarters or low light as well as a small aperture for long shots. The design means one zero for both apertures with no point of impact shift.

Features :

• MIL-spec manganese phosphate finish
• Direct replacement for M16A2-style dual aperture sights
• Both large and small apertures are on the same plane
• Compensates for lateral movement on windage screw while switching between apertures
• One zero for both apertures with no point of impact shift
• Large aperture (0.208” I.D.) for quick sight acquisition in close quarters or low light
• Small aperture (0.081” I.D.) for longer, more accurate sighting of distant targets