Magpul MBUS Gen 3 Front And Rear AR 15 Back-Up Sight Kit



The Magpul MBUS Gen 3 Front and Rear AR-15 Back-Up Sight Kit is a reliable and affordable backup sighting solution for your AR-15/M4 platform. Crafted from impact-resistant polymer, these sights offer a lightweight and durable design that can withstand demanding shooting conditions.

The kit includes both the MAG1166 front sight and the MAG1167 rear sight, available in Black, Flat Dark Earth, or OD Green finishes. The Gen 3 MBUS sights feature a slimmer profile, folding down to just 0.44 inches above the rail, making them unobtrusive when stowed.

One of the standout features of this kit is the tool-free adjustment system, allowing you to make windage and elevation adjustments without the need for specialized tools. The rear sight also incorporates a flippable aperture, enabling quick transitions between narrow and wide apertures with just your thumb.


  • Height (Stowed): 0.44 in.
  • Platform Compatibility: AR-10, AR-15, M4, M16, M110, SR25

Windage Adjustment:

  • ~0.7 MOA/click (14.5" sight radius)
  • ~0.5 MOA/click (20" sight radius)

Elevation Adjustment:

  • ~1.6 MOA/click (14.5" sight radius)
  • ~1.2 MOA/click (20" sight radius)

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