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Magpul MAG276-BLK Steel Flip-Up Rear Sight – BUIS


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Magpul MAG276-BLK Steel Flip-Up Rear Sight – BUIS

The MBUS Pro is a case hardened steel back-up sighting solution protected by a Melonite finish for excellent corrosion resistance. The dual aperture MBUS Pro Rear Sight features tool-less windage adjustments. Positive detents keep the MBUS Pro Rear locked into place while stowed or deployed.


  • ~0.5 MOA (0.566″/100m) per click with a 14.5″ sight radius
  • ~0.4 MOA (0.410″/100m) per click with a 20″ sight radius
  • Case hardened steel construction with a Melonite finish
  • Tool-less windage adjustable
  • Picatinny rail compatible
  • Positive detents in up and down positions
  • Standard AR sight height when deployed
  • Height – Stowed: ~0.37″
  • Length – Stowed: 2.1″
  • Aperture height over rail: 1.41″
  • Small aperture diameter: 0.07″
  • Large aperture diameter: 0.19″
  • Weight: 1.80 oz
  • MSRP. $104.95
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