Magpul MBUS Pro Rear Sight - Black

Manufactured by Magpul Industries
Manufactured by Magpul Industries
25 Reviews

In Stock

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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

Magpul continues to grow and develop based on innovation, simplicity, and efficiency. At Magpul, mission driven requirements inform their product design, materials, and manufacturing, focusing on efficiency without sacrificing quality or performance.
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Fixed FoldingFolding
ManufacturerMagpul Industries
Weight1.8 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

25 reviews

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MBUS Pro rear


Awesome, but pricey, but awesome.

Better than expected


Was expecting a much larger unit but it fits very well on my upper when folded it sits low on rail when up it is solid and cowitnesses with my YHM flip up gas block front site. Primary Arms service is top notch great prices and shipping is fast unfortunately our Fed Ex driver can't read and delivered my package to the neighbors house and they are gone on vacation.

Happy Buyer


Purchased both the front and rear. I wanted something I never needed to upgrade and that could serve as my main optic until I saved enough coin for a Trijicon ACOG. Before buying I was torn between these and the Troy battle sights. I am happy I went with these. I like to tinker and add new parts often which means taking the gun apart and sighting in often. The ability to adjust the sights without tools sold me for this reason. I know half the time I would forget to bring tools to the range which could mean complete wastes of trips. The dial to adjust is firm so you cannot accidentally bump it and adjust it. Holds zero perfect and has very tight engagement when flipping up and down. All my holes either touch or go through one another at 50 yards. That's precise enough for me. Also built like a tank. PA as always was perfect.

Love them!

by -

Love the magpul pro sights. Much better than the polymer ones.

Bomb Proof

by -

This sight costs a bit more than the standard polymer MBUS, but is everything the polymer sights are not! Rock solid mounting, slim metal design DOSE NOT impede access to the charging handle...Seriously, buy quality and cry once! You won't find this one in your box of spares.