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Reviews & Ratings for Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2 — 338 reviews

(338 reviews)
Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
As Low As $48.99 Save Up to 17%
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Most Helpful Positive Review Great backup sight
Easy to install. Works perfectly with the fixed A2 front sight on my upper. Folds out of the way when not needed. Great ordering experience from Optics Planet. Pros: Low profile folds flat, high quality polymer Cons: None
Most Helpful Negative Review You get what you pay for
I regretted this purchase as I pulled it from the box. The sight is massive, far bigger than, say, my Noveske or other, more expensive sights. I have since sold it locally. Having said that - for the price you are getting a very solid sight that does what it is supposed to do. I like two apertures,...
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cool color

by Dave, Verified Owner from KS, United States Written on June 24, 2026
These are classic for any AR. I was skeptical of the color at first but they look really cool on an all black AR. Makes em look steel like which I like. Hope this helps someone decide whether to purchase these or not.
Would recommend: Yes
Was it helpful to you? Yes | No
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Backup Sight Rear

by Riptor, Verified Owner from IN, United States Written on June 6, 2026
Purchased for a set of backups for a build. I put gray and black XTM panels on it so I bought this Gen 3 front sight and a Gray gen 2 rear to keep with the aesthetic. Easy to install, easy to use, affordable, high quality...everything Magpul has been synonymous with. Only thing getting used to with mixing generations is the gen 3 front it actuated from the front of the sight and the gen 2 are actuated from side paddles. I usually buy the MBUS Pro steel sights but I wanted to try the polymer. 5 stars.
Pros:
  • Price
  • Ease of use
  • Ease of Install
Cons:
  • None
Best Used for:
  • defense
  • Training
  • backup sight
Would recommend: Yes
Was it helpful to you? Yes | No
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Magpul MBUS Rear Flip Site

by Ridgeview Shooter, from VA, United States Written on January 14, 2026
Works as expected Magpul always makes solid products.
Would recommend: Yes
Was it helpful to you? Yes | No
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Perfect for my AR

by Frank, Verified Owner from CT, United States Written on January 2, 2026
Was exactly what I was looking for. Love how it looks
Would recommend: Yes
Was it helpful to you? Yes | No
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Works great right out the box.

by KaiLRK, Verified Owner from AZ, United States Written on November 22, 2025
Took to the range and shot right on target at 25 yards with no need for adjustments.
Would recommend: Yes
Was it helpful to you? Yes | No
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Mag pull sight, folding

by Chris, Verified Owner from FL, United States Written on October 12, 2025
Strong and very light design. Easy to operate and holds in place.
Would recommend: Yes
Was it helpful to you? Yes | No
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Magpul MBUS Gen 2 rear sight

by Singh, Verified Owner from NV, United States Written on May 17, 2025
I’ve had a great experience with the Magpul MBUS Gen 2 rear sight—it’s easy to install and deploy. The flip-up action is smooth and stays secure when in use. I like how lightweight it is without sacrificing durability. It’s a dependable backup that gives me peace of mind on any setup.
Would recommend: Yes
Was it helpful to you? Yes | No
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Goto pop sight!

by Shawn Baab, Verified Owner from OH, United States Written on April 13, 2025
These are my goto sights for any build or new purchase. Great quality and very easy to install. Price is great at optics planet as well!
Pros:
  • Quality
  • cost
  • easy to install
Cons:
  • None
Best Used for:
  • Any rail equipped firearm.
Would recommend: Yes
Was it helpful to you? Yes | No
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Good sight

by Dk1995, Verified Owner from OK, United States Written on March 7, 2025
Solid sight no issues fit is good and works as it should
Would recommend: Yes
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backup iron sights

by Jerry Mathys, Verified Owner from OH, United States Written on February 22, 2025
I have tried various iron sights over the years, and found that buy the best the first time and you won’t have to buy things twice. Optics planet has everything I need and want. Magpul buis are the best. I look to optics for most of my needs, and delivery is always on time. Thank you optics planet.
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.