USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models Review

Let’s Talk About USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models

In the world of AR-15 accessories, few names are as recognizable and respected as Magpul. Their MBUS (Magpul Back-Up Sight) series has become a staple for shooters seeking reliable, affordable, and durable back-up iron sights. This review delves into the USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models, exploring its features, performance, and value proposition, especially considering it’s a used item. Is it a worthwhile addition to your rifle, or should you invest in a new set?

I was on the hunt for a reliable, yet budget-friendly, back-up sight for a recent AR build. My primary optic is a red dot, but I wanted the peace of mind that comes with having iron sights in case the optic fails or the battery dies. I wasn’t necessarily looking for “new,” and the promise of saving a few bucks on a USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models was appealing.

Upon receiving the USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models, I was impressed. Despite being used, the sight appeared to be in excellent condition – almost like new, as the product description suggested. It felt solid and well-built, exhibiting the typical Magpul quality I’ve come to expect.

I considered other back-up sight options, like the Troy Industries folding sights and some of the metal offerings from other manufacturers. Ultimately, I chose the Magpul MBUS for a few key reasons. The price point was a major factor, and Magpul’s reputation for durability and reliability with polymer construction was another.

My first impression was definitely positive. The sight looked clean, functioned smoothly, and felt like a quality piece of equipment. I was eager to get it mounted and test it out at the range.


Real-World Testing: Putting USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models to the Test

First Use Experience

I mounted the USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models on the Picatinny rail of my AR-15 and headed to the shooting range. The weather was clear and sunny, providing ideal conditions for sighting in the rifle. The initial setup was straightforward, requiring only a few minor windage adjustments to align the rear sight with my front sight.

The MBUS performed admirably, providing a clear and consistent sight picture. I tested it at distances ranging from 25 to 100 yards and found that the adjustments were precise and repeatable. The dual aperture feature allowed me to quickly switch between a smaller aperture for more precise aiming at longer distances and a larger aperture for faster target acquisition at close range.

I encountered no significant issues during my first range session. The flip-up mechanism worked flawlessly, and the sight remained securely locked in both the up and down positions. The polymer construction felt durable, even after several hours of use.

Extended Use & Reliability

After several months of regular use, the USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models has proven to be remarkably reliable. I’ve taken it through various shooting scenarios, including dusty outdoor ranges and even a light rain shower, and it has consistently performed without any issues.

The sight shows minimal signs of wear and tear, despite being a used item. The polymer construction has held up exceptionally well, showing no signs of cracking or deformation. The flip-up mechanism continues to operate smoothly, and the windage adjustments remain precise and reliable.

Maintaining the MBUS is incredibly simple. A quick wipe down with a cloth is typically all that’s needed to keep it clean and functioning properly. I’ve occasionally used a small brush to remove any accumulated dust or debris, but that’s about it.

Compared to my previous experience with cheaper, metal back-up sights, the Magpul MBUS is a clear winner. The polymer construction is surprisingly durable, and the sight is significantly lighter and more comfortable to use. It has consistently outperformed my expectations, providing a reliable and accurate back-up sighting solution.

Breaking Down the Features of USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models

Specifications

  • Manufacturer: Magpul Industries.
  • Model: MBUS Rear Sight, Generation II.
  • Material: Impact-resistant polymer.
  • Mounting: Fits MIL-STD-1913 Picatinny rails.
  • Aperture: Dual aperture (small and large).
  • Adjustment: Windage adjustable.
  • Color: Grey (as per the product description).
  • Folding: Spring-loaded flip-up design.
  • Height Over Bore: Same height as standard A2 iron sights.

These specifications matter because they dictate the sight’s overall performance and suitability for different applications. The polymer construction provides a lightweight and durable alternative to traditional metal sights. The Picatinny rail compatibility ensures that it can be easily mounted on a wide variety of AR-15 rifles and other firearms. The dual aperture feature offers versatility for both close-range and long-range shooting.

Performance & Functionality

The USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models excels at its primary job: providing a reliable and accurate back-up sighting solution. The sight is easy to deploy and adjust, and it provides a clear and consistent sight picture. The windage adjustments are precise and repeatable, allowing for accurate zeroing.

One of the strengths of the MBUS is its simplicity. There are no complicated features or adjustments to worry about, making it incredibly easy to use, even under stress. The main weakness, inherent to polymer sights, is its theoretical lower resistance to extreme heat compared to metal sights.

Overall, the MBUS meets and even exceeds expectations for a back-up sight. It is a simple, reliable, and accurate sighting solution that is well-suited for a wide range of shooting applications.

Design & Ergonomics

The Magpul MBUS features a well-thought-out design that prioritizes both functionality and ergonomics. The polymer construction makes it lightweight and comfortable to use. The rounded edges and smooth surfaces prevent snagging on gear or clothing.

The flip-up mechanism is easy to operate, even with gloves on. The detent knob for windage adjustments is easily accessible and provides tactile feedback with each click. There is virtually no learning curve associated with using the MBUS.

Durability & Maintenance

Given the used nature of this sight, durability was a primary concern. However, the Magpul MBUS has proven to be remarkably durable. The polymer construction is impact-resistant and has held up well to regular use.

Maintenance is minimal. A quick wipe down with a cloth is typically all that’s needed to keep the sight clean and functioning properly. The MBUS is designed to be easily disassembled for cleaning and maintenance, should the need arise.

Accessories and Customization Options

The Magpul MBUS is designed to be a standalone back-up sight and does not typically require any additional accessories. However, it is compatible with a wide range of aftermarket front sights, allowing for customization of the overall sighting system.

The sight can be easily paired with various Magpul accessories, such as the Magpul MOE handguards and stocks, to create a cohesive and functional AR-15 platform. There are no specific customization options for the rear MBUS itself, but its compatibility with other accessories allows for a high degree of overall rifle customization.

Pros and Cons of USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models

Pros

  • Reliable and durable Magpul quality.
  • Lightweight polymer construction.
  • Affordable, especially in used condition.
  • Easy to install and adjust with precise windage.
  • Dual aperture provides versatility.
  • Spring-loaded flip-up is quick and easy to deploy.

Cons

  • Polymer construction might not be as heat resistant as metal.
  • “Used” condition may exhibit minor cosmetic imperfections.


Who Should Buy USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models?

The USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models is perfect for budget-conscious shooters who are looking for a reliable and durable back-up sighting solution. It’s also ideal for those who prioritize lightweight and ergonomic designs. It is a great option for casual range shooters, recreational AR owners, and those building their first AR-15.

Those who should skip this product are individuals who demand absolute top-tier performance and durability, or those who are unwilling to accept even minor cosmetic imperfections in a used item. If you operate in extreme environments where the sight might be exposed to intense heat, a metal sight might be a better option.

A must-have accessory, really, is a quality front sight to pair with the MBUS rear. A front Magpul MBUS, or a similarly robust metallic front sight, are excellent choices.

Conclusion on USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models

The USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models offers excellent value for the money, especially considering its used price point. It provides a reliable and accurate back-up sighting solution in a lightweight and durable package. Magpul’s proven track record for quality and durability further enhances its appeal.

The price is certainly justified. Saving a few dollars on a used MBUS allows you to allocate budget elsewhere on your build.

I would absolutely recommend the USED Magpul MBUS Rear Flip-Up Back Up Sight Gen 2, – 1 out of 10 models to anyone looking for a reliable and affordable back-up sighting solution. Don’t let the “used” designation deter you. If the sight is in good condition, as mine was, it represents an excellent opportunity to save money without sacrificing performance or reliability. Equip your rifle with the Magpul MBUS and gain the peace of mind that comes with having a dependable back-up sighting system!

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