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4.3 out of 5 stars. 114 reviews
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Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up

  • New Arrival

Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up

Item # 611959899

Magpul Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up
Magpul Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up
$37.99

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  • New Arrival

Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up

Item # 611959899

Magpul Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up
Magpul Magpul MBUS 3 Front Sight for AR-10/AR-15/M4/M16/M110/SR-25, Olive Drab Green, Flip Up

$37.99
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Significantly reduced in size from the MBUS, it sits at just 0.47 high when folded, 1.38 at its widest point, and weighs a scant 25 grams with hardware. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Front Sight is constructed of our impact-resistant polymer, making it lightweight and extremely durable. Featuring the same spring-loaded technology as its predecessor, they can be deployed with an ambidextrous push-button. The MBUS 3 Front Sight sits at standard AR-height when deployed and includes tool-less elevation adjustment of a dual width enhanced front post similar to the MBUS Pro. 1 MOA (1.131"/100m) per click with a 14.5" sight radius. 0.7 MOA (0.820"/100m) per click with a 20" sight radius. Cannot be mounted to a railed gas block due to excess heat issues. Front MBUS must be mounted to a railed fore end on the same plane as the receiver rail. Because of this the sight is also not compatible with MOE Hand Guards. Made in the USA.

  • Compact size: 0.47" high when folded, 1.38" at its widest point
  • Weight: 25 grams with hardware
  • Design inspiration: aesthetics derived from the MBUS Pro
  • Material: impact-resistant polymer construction for lightweight, high durability
  • Deployment: spring-loaded technology like predecessor
  • Operation: deploys using an ambidextrous push-button
  • Height when deployed: sits at standard AR-height
  • Elevation adjustment: tool-less elevation adjustment
  • Front post: dual-width enhanced front post similar to the MBUS Pro
  • Windage/elevation click specs (front sight):
  • 1 MOA (1.131"/100m) per click with a 14.5" sight radius
  • 0.7 MOA (0.820"/100m) per click with a 20" sight radius
  • Mounting limitations:
  • Cannot be mounted to a railed gas block due to excess heat issues
  • Front MBUS must be mounted to a railed fore end on the same plane as the receiver rail
  • Not compatible with MOE Hand Guards
  • Made in the USA
  • Firearm Fitment: AR-10/AR-15/M-4/M16/M110/SR-25
  • Color: Olive Drab Green
  • Elevation Adjustment: 1 MOA
  • Firearm Type: AR Platform
  • Frame Material: Polymer
  • Mount Type: Picatinny Rail/STANAG 4694 Rail
  • Style: Folding Back Up Sight
  • Weight: 25 g

Q&As

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Reviews

Rating Snapshot

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84 reviews with 5 stars.
9 reviews with 4 stars.
6 reviews with 3 stars.
2 reviews with 2 stars.
13 reviews with 1 star.

Overall Rating

4.3
66 out of 79 (84%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
Customers overwhelmingly praise this front sight for its reliability, tool-free adjustment mechanism, and robust construction. Most highlight the intuitive pop-up design, lightweight yet durable polymer build, and seamless integration with rifles. The tactile feedback and finger-tunable adjustments ...
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1 to 4 of 114 Reviews .
1 – 4 of 114 Reviews
Review 1

Solid sight

27 days ago
Great sight. Easy to install and seems rugged enough for everyday use. Seems to hold accuracy although I've only had it out 3 times so far.

Originally posted on Magpul

Review 1

Easy

5 months ago
Quick and simple install and function just as I need them to

Originally posted on Magpul

VA
Review 1

MPBS 3

5 months ago
Never been disappointed with MAGPUL. Love how the MBUS 3 is shaved down and minimized compared to the first gen. They seem to be built very robust and to the same quality as all the products I have gotten from MAGPUL.

Yes, I recommend this product.

Originally posted on Magpul

Pennsylvania
Review 1

Mixing Gens

9 months ago
Purchased to replace a lost 1st Gen front sight. Works well with the 1st Gen rear sight. Smaller footprint (nice!) different activation method.

Yes, I recommend this product.

Originally posted on Magpul