Magpul MBUS 3 Rear sight
$52.00Price
Magpul Industries, MBUS 3 Back-Up Rear Sight, Rapid-Select Rear Aperture System, Ambidextrous Push-Button Deployment, Fits Picatinny Rails, Black
Full featured spring loaded flip up sight
Ambidextrous push-button deploymentand rapid-select rear aperture system
0.44" high when foldedand 1.15" wide at widest point
Standard AR-height when deployed
Impact resistant polymer construction
Clamps to most MIL-STD-1913 picatinny rails
Made in the U.S.A.