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MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 Black
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 ODG
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
MBUS Rear Sight Flip-Up Polymer for AR-15 Stealth Gray
None None
MadeInUsa MadeInUsa OFF

MAGPUL - MBUS Rear Sight Flip-Up Polymer for AR-15 FDE

16 Reviews
Color
MBUS Rear Sight Flip-Up Polymer for AR-15 FDE
Brownells #
100006788
MFR #
MAG248-FDE
UPC
873750004365
$39.99
Coupon Code
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International purchase information

Specifications
Item Weight (lbs):
0.813
Color:
Dark Earth
Quantity:
1
Make Model Fit:
AR-15.Universal
Sight Style:
Folding
Restriction
Gun Part Restrictions:
Yes
Ship to all EXCEPT:
Australia
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International purchase information

What is the MAGPUL - MBUS Rear Sight Flip-Up Polymer for AR-15 FDE?

The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15 / M16 platform.



FEATURES

  • Spring-loaded flip up sight easily activated from either side or by pressing the top
  • Protective wings shield the dual, same plane flip apertures
  • Sight can still be folded with either large or small aperture in position
  • Detent knob easily and positively adjusts windage
  • Impact-resistant polymer construction provides light weight and resists operational abuse
  • Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
  • Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons
  • Made in the USA.



SPECS

  • Position: Rear
  • Height above rail, stowed: ~0.51 in.
  • Length, deployed: 1.5 in.
  • Length, stowed: 2.6 in.
  • Weight, w/ hardware: 1.3 oz.
  • Center of aperture to top of rail: 1.42 in.



WINDAGE ADJUSTMENT

  • ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius
  • ~0.5 MOA (0.547"/100m) per click with a 20" sight radius

See all of our AR15s and AR15 parts here.

Gun Part Restriction
Gun Parts have restricted shipping to CA.

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MBUS® FLIP-UP REAR SIGHT FOR AR-15 REVIEWS

4.2
16 Reviews
5 Stars
50%
4 Stars
25%
3 Stars
19%
2 Stars
6%
1 Stars
0%
Reviews Summary
Customers appreciate the MBUS Flip-Up Rear Sight for its affordability, ease of installation, and decent performance. While many praise its functional design and ambidextrous features, some express concerns about durability and long-term usability. Overall, the sight is seen as a reliable backup option but may not suit more demanding shooting needs.
What Reviewers Are Saying
Affordability
60%
Many reviewers highlight the cost-effectiveness of the MBUS Flip-Up Rear Sight, making it an accessible option for users seeking reliable iron sights without breaking the bank. This theme is prevalent among those comparing it to pricier alternatives, with approximately 60% of reviewers acknowledging its good value for the price.
Ease of Installation
70%
Installation is frequently mentioned as simple and straightforward. Reviewers have found that the sight mounts easily, which enhances user experience and adds to its appeal as a quick solution for backup sights, with around 70% of users commenting positively in this regard.
Durability Concerns
40%
A significant number of users express reservations about the long-term durability of the MBUS, suggesting that while it is functional, it may not withstand heavy use effectively. This concern has been noted by about 40% of reviewers who question its sturdiness compared to all-metal alternatives.
Performance & Usability
35%
While most reviews mention that the sights work as advertised, some customers critique their performance under specific conditions, such as aiming speed and accuracy. This theme is relevant for those who need precision in their shooting, with roughly 35% of users discussing usability issues.
Customer Experience
55%
Reviewers consistently praise the fast shipping and reliable service from retailers like Brownells, contributing positively to the overall customer experience. This aspect has been positively highlighted by about 55% of buyers, enhancing satisfaction with the purchasing process.
Design Features
50%
Several users remark on the thoughtful design, such as ambidextrous deployment and color-coded options for various calibers, which many find advantageous. Approximately 50% of customers appreciate these features, recognizing them as beneficial for efficient use.
5
Expect the best
I always get great results from Brownells. Never an issue … ever. I’ve been a customer for near 30 yrs and appreciate their company.
by JOHN GARDINER on September 05, 2024
Verified Purchase
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5
Great Sight
Most of my iron sights are Magpul.
by Erik May on November 17, 2023
Verified Purchase
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5
MBUS rear sight gen2
Cost effective and perfect fit
by KENNETH CHAPMAN on September 16, 2023
Verified Purchase
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5
Gen 2 MBUS NOT Obsolete
I continue using the Gen 2 MBUS as I prefer it’s design over the Gen 3. YMMV
by STATE PROBATION & PAROLE OFFIC on September 07, 2023
Verified Purchase
Was this review helpful? 1
5
Fully Functional for All my AR platforms
Great add-on for all my AR platforms. Ambidextrous deployment and closing makes for easy operation with either thumb. I usually use with large aperture mode for easy, quick target acquisition. With advent of new alternate caliber Upper's I Color Code guns by caliber; OD Green=.300 Blackout; All Black=6.8 SPC guns & FDE/Tan=5.56Nato/.223 AR's. Install matching color butt stocks, pistol grips, trigger guard bottoms, front & rear flip sights, mags and fore ends. Makes for very easy/quick caliber ID per gun!
by Congoman on August 15, 2021
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View All 16 Reviews
Customer Questions
3 Questions