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Reviews & Ratings for Magpul Industries MBUS 3 Front Rifle Sight — 64 reviews

(64 reviews)
Magpul Industries MBUS 3 Front Rifle Sight
Magpul Industries MBUS 3 Front Rifle Sight
As Low As $35.95 Save Up to 45%
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Most Helpful Positive Review MBUS 3 improvements are worth the extra $
The MBUS 3 sight housings are slightly smaller and lower profile than the gen 2 while being much easier to adjust (no tool or makeshift implement is needed for the front sight, and the rear sight's small to large aperture selection is made easier with separate apertures separated by 45 degrees of ro...
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Most Helpful Negative Review Did’t fit on the picatinney rails on three different ARs that I own.
DO NOT RECOMMEND! I looked-on line, followed all suggestions. Finally, used a file, got the front sight mounted. Decided to not mess with rear sight. Not happy with these sights at all.
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Backup Sight Front

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:
  • Training
  • defence
  • Backup sights
Would recommend: Yes
Was it helpful to you? Yes | No
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Its Magpul

by kp7159, Verified Owner from CA, United States Written on May 17, 2026
Typical Magpul stuff,quality,need I say more.
And buying from Optics Planet is a pleasure,always have what I need.
Would recommend: Yes
Was it helpful to you? Yes | No
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good enough

by Clyde, Verified Owner from GA, United States Written on April 7, 2026
These sights do what they’re supposed to do. Put the thing on the thing and pull the thing. If you need polymer lightweight backup sights then look no further.
Pros:
  • light weight
Cons:
  • Polymer
Best Used for:
  • Aiming
Would recommend: Yes
Was it helpful to you? Yes | No
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Great Product

by Erik Forman, from CA, United States Written on March 11, 2026
This is a great product. The gold standard for polymer back up sights. But just before warned that it will not fit underneath a Unity mount for an EOTech magnifier.
Pros:
  • Does what it is supposed to.
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Best that beat the rest

by Eric McComas, Verified Owner from KY, United States Written on January 24, 2026
MBUS 3 Front Rife Sight is the best front.I never had any sights on my AR 15.But I watch a bunch of videos about having back up sights for your red dot.They recommend this on being great.Guess what they wasn’t lying.I would tell guys to buy this product in a heart beat.
Would recommend: Yes
1 of 1 found the following review helpful.
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Best that beat the rest

by Eric McComas, Verified Owner from KY, United States Written on January 24, 2026
MBUS 3 Front Rife Sight is the best front.I never had any sights on my AR 15.But I watch a bunch of videos about having back up sights for your red dot.They recommend this on being great.Guess what they wasn’t lying.I would tell guys to buy this product in a heart beat.
Would recommend: Yes
Was it helpful to you? Yes | No
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Best rear sight for the price

by BT, Verified Owner from PA, United States Written on January 23, 2026
These sights are the go-to sights for my AR builds. They're lightweight and function perfectly under difficult conditions. Excellent backup sights!
Would recommend: Yes
Was it helpful to you? Yes | No
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mag Paul flip up sites third GEN

by boba, Verified Owner from WI, United States Written on January 16, 2026
Sites are awesome look great fit perfect nice and compact they barely stick out no snagging points. Can’t wait to take the range.
Would recommend: Yes
Was it helpful to you? Yes | No
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magpul mbus 3 front sight

by D Jones, Verified Owner from IN, United States Written on January 6, 2026
Very well made over the previous generation of mbus sights from magpul. Highly recommend.
Would recommend: Yes
Was it helpful to you? Yes | No
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Mbus 3 Magpul

by Jim, Verified Owner from MO, United States Written on January 4, 2026
Function as described, wish there had been some instructions. They do co-witness with Vortex red/green dot sight. These slide onto they rail just not easily.
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.