Magpul MBUS 3 Rear Sight – Black


The Magpul MBUS 3 rear sight combines the best of both worlds from Magpul’s line of back up sights. The low profile and minimalist design from the MBUS Pro combined with the lightweight impact resistant polymer of the original MBUS sights give you a cost effective and feature packed solution for mounting flip up sights on your rifle. When folded, the MBUS 3 sight is only .44” high and only 1.15” wide, so it sits on slimmer rails without overhanging. Additionally, the Magpul MBUS 3 rear sight features the same spring-loaded technology that can be deployed by the press of an ambidextrous button.

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Frequently Bought Together

Price for both: Original price was: $99.90.Current price is: $94.90.


  • Polymer construction
  • Spring loaded with ambidextrous button
  • .44” high when folded
  • 1.15” wide
  • Standard AR height when deployed
  • Dual apertures
  • Toolless windage adjustment
  • Made in the U.S.A.

The MBUS 3 rear sight is a standard AR height when deployed and it features toolless windage adjustments with two apertures to choose from.

Additional information

Weight .2 lbs
Dimensions 8 × 4 in


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