Let’s Talk About Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models
The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models represents Magpul’s evolution of their popular back-up sight system, aiming to blend the best aspects of the original MBUS and the MBUS Pro. This iteration boasts a smaller footprint, enhanced durability, and a user-friendly design, making it a compelling option for AR owners seeking reliable backup sighting solutions. Its impact-resistant polymer construction and ambidextrous deployment are just a couple of features that caught my eye and prompted me to give it a try.
I needed a reliable, low-profile backup sight for my AR-15 build, something that wouldn’t add unnecessary bulk but would be ready to go when needed. I was particularly interested in a polymer option, as I wanted to keep the overall weight of my rifle down without sacrificing too much durability.
Upon unboxing, the MBUS 3 immediately impressed me with its compact size and seemingly robust polymer construction. It felt solid in hand, and the push-button deployment mechanism had a satisfyingly positive action.
Compared to the original MBUS, the MBUS 3 is noticeably smaller. It also felt a bit more refined than the original. I also considered the Troy Industries folding battle sight, but its metal construction added weight and a higher price tag that wasn’t ideal for a backup sight. My first impression was one of pleasant surprise. It seemed like Magpul had truly delivered on their promise of a compact, durable, and functional backup sight.
Real-World Testing: Putting Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models to the Test
First Use Experience
I first tested the Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models at my local outdoor shooting range. The weather was sunny and mild, perfect conditions for zeroing and testing the sight’s performance.
The MBUS 3 performed admirably. The adjustments for windage were crisp and tactile, allowing for easy zeroing. I had no trouble getting it dialed in at 50 yards. Even after a few hours of shooting, the sight stayed firmly in place on the Picatinny rail. The positive locking mechanism instilled confidence that it wouldn’t deploy accidentally.
It did not take much time at all for me to grow accustomed to its quick deployment and easy adjustments. There were no functional surprises after the first range trip.
Extended Use & Reliability
After several months of regular use, the Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models has proven to be a reliable and durable backup sighting option. It has accompanied me on several range trips and even a weekend camping excursion, where it was exposed to a bit of light rain and some dusty conditions.
There are no noticeable signs of wear and tear. The polymer construction has held up remarkably well, showing no signs of cracking, chipping, or fading. Cleaning is a breeze, requiring only a quick wipe-down with a damp cloth after each use.
Compared to a previous set of generic metal flip-up sights I had used, the MBUS 3 is lighter, more durable, and offers a more streamlined profile when folded. It has definitely exceeded my expectations for a polymer backup sight.
Breaking Down the Features of Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models
Specifications
- The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models is a spring-loaded flip-up sight designed for use on AR-15 and AR-10 platforms. Its primary purpose is to serve as a backup sighting system.
- It features an ambidextrous push-button deployment mechanism, ensuring ease of use for both right- and left-handed shooters. This facilitates quick and reliable deployment under stress.
- When folded, the sight sits at a mere 0.44 inches high, contributing to a very low profile. Its width at the widest point is 1.15 inches.
- When deployed, the sight sits at the standard AR height. This allows for comfortable and intuitive use in conjunction with standard-height front sights.
- The MBUS 3 is constructed from Magpul’s renowned impact-resistant polymer. This ensures lightweight and rugged durability to withstand operational abuse.
- It clamps securely to most MIL-STD-1913 Picatinny rails, offering broad compatibility. It also makes it very easy to install.
- The center of the aperture to the top of the rail measures 1.42 inches. This is the standard AR height, ensuring co-witnessing with many optics.
- Windage adjustments are made at 0.7 MOA (0.754in/100m) per click with a 14.5in sight radius. Or, 0.5 MOA (0.547in/100m) per click with a 20in sight radius, allowing for precise zeroing.
These specifications are very important because they directly impact the sight’s functionality, durability, and overall user experience. The low-profile design minimizes obstruction when using a primary optic, while the robust polymer construction ensures reliable performance in demanding conditions.
Performance & Functionality
The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models performs its job as a backup sight exceptionally well. Its primary function is to provide a reliable aiming solution in the event of optic failure, and it delivers on this promise.
Its strengths lie in its ease of deployment, accurate adjustments, and durable construction. The only potential weakness is the polymer construction, which some users may perceive as less robust than metal alternatives, even though my testing has shown it to be quite durable.
The MBUS 3 meets and even slightly exceeds expectations for a polymer backup sight. It provides a lightweight, low-profile, and dependable sighting solution.
Design & Ergonomics
The MBUS 3 features a thoughtfully designed and ergonomically sound build. The materials used are high-quality impact-resistant polymer, which results in a lightweight yet sturdy sight.
The sight is user-friendly, and there is virtually no learning curve associated with its operation. The push-button deployment is intuitive. It makes windage adjustments quick and straightforward.
Durability & Maintenance
The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models is designed to last for many years with proper care. Its polymer construction is highly resistant to impacts, scratches, and weather.
Maintenance is simple. Regular cleaning with a damp cloth and occasional lubrication of the moving parts is all that’s required to keep it in top condition.
Accessories and Customization Options
The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models does not come with any specific accessories beyond what’s needed for installation. It’s designed to be a standalone backup sight.
Due to its Picatinny rail compatibility, it can be paired with a wide range of front sights from various manufacturers. There are no inherent customization options beyond selecting the desired color (Black, Flat Dark Earth, Stealth Gray, and OD Green).
Pros and Cons of Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models
Pros
- Lightweight and low profile: Doesn’t add unnecessary bulk to the rifle.
- Durable polymer construction: Withstands operational abuse.
- Ambidextrous deployment: Suitable for both right- and left-handed shooters.
- Easy to install and adjust: Simple to zero and use.
- Affordable: Great value for the money.
Cons
- Polymer construction: May not be as robust as metal alternatives for some users.
- Limited customization: No major customization options available.
Who Should Buy Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models?
The Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models is perfect for AR-15 and AR-10 owners seeking a reliable, lightweight, and affordable backup sight. It’s ideal for recreational shooters, tactical enthusiasts, and anyone who wants a dependable secondary sighting system in case their primary optic fails.
This product might not be the best choice for those who prioritize extreme durability above all else and prefer metal sights, regardless of weight or price. Those who desire extensive customization options might also find the MBUS 3 limiting.
A must-have accessory is a quality front sight to pair with the MBUS 3 rear sight. Also, a sight adjustment tool can make zeroing even easier.
Conclusion on Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models
Overall, the Magpul Industries MBUS 3 Sight, Rear, AR10, AR15, – 1 out of 3 models is an excellent backup sight that offers a compelling combination of lightweight design, durable construction, and user-friendly operation. It’s a significant improvement over the original MBUS, offering a more refined and compact profile.
At a price of $48.99, the value proposition is exceptional. It’s a small price to pay for the peace of mind that comes with having a dependable backup sighting system.
I would definitely recommend the MBUS 3 to anyone looking for a quality polymer flip-up sight. It’s a reliable, affordable, and practical addition to any AR platform. Upgrade your AR today with the Magpul MBUS 3 and ensure you’re always ready, no matter what!