Magpul MBUS Gen 2 Rear Flip-Up Sight Gray
Magpul Industries
$55.05
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Magpul Industries
Magpul MBUS Gen 2 Rear Flip-Up Sight Gray
The Magpul MBUS Gen 2 Rear Flip Sight in Gray is a battle-proven, spring-loaded back-up iron sight engineered for AR-15/M16 platforms and any rifle equipped with a 1913 Picatinny rail, delivering reliable performance at an accessible price point.
- Spring-loaded flip-up design activates instantly from either side or top
- Dual aperture system with both apertures on the same plane
- Protective wings shield apertures from impact and field damage
- Tool-free detent knob provides positive, audible windage adjustments
- Lightweight, color-injected polymer construction resists corrosion and abuse
- Detent and spring pressure holds sight upright or folded under recoil
Who This Is For
The Magpul MBUS Gen 2 Rear Sight is ideal for AR-15 and M16 owners who want a dependable, lightweight back-up iron sight that co-witnesses with popular red dot optics. Whether you're a competitive shooter, a home-defense rifle builder, or a tactical enthusiast looking for a cost-effective BUIS solution, this sight offers Magpul's renowned durability without the premium price tag of metal alternatives.
Specifications
| Brand | Magpul Industries |
|---|---|
| Model | MBUS Rear Flip Sight Gen 2 |
| Color | Gray |
| Generation | 2nd Generation |
| Material | Color-Injected Polymer |
| Aperture | Dual Aperture, Same Plane |
| Rail Compatibility | MIL-STD 1913 Picatinny Rail |
| Windage Adjustment | Tool-Free Detent Knob |
| Platform | AR-15 / M16 (Primary) |
| Deployment | Spring-Loaded, Ambidextrous |
Frequently Asked Questions
Will the Magpul MBUS Gen 2 co-witness with my red dot or holographic sight?
Yes. The MBUS Gen 2 Rear Sight is designed to co-witness with most popular red dot and holographic sights, including Aimpoint and EOTech optics, when mounted on a standard flat-top AR-15 upper receiver. Depending on your optic's height, you may achieve either absolute or lower-third co-witness. Pairing it with the Magpul MBUS Gen 2 Front Sight ensures a matched, reliable back-up system.
What is the difference between the MBUS Gen 1 and Gen 2 rear sights?
The Gen 2 features a refined spring-loading mechanism for faster, more consistent deployment and improved protective wings that better shield the apertures. The attachment and windage adjustment systems were also updated for a more positive, snag-free feel compared to the original MBUS design. The Gen 2 is the current standard recommended by Magpul.
Is the MBUS Gen 2 Rear Sight durable enough for duty or defensive use?
Absolutely. While polymer-based, the MBUS Gen 2 is made from a high-strength, color-injected polymer that is drop-tested and impact-resistant. The detent and spring system keeps the sight locked reliably in the deployed or folded position even under recoil and incidental impacts. It is widely used by military, law enforcement, and civilian shooters as a cost-effective yet capable back-up iron sight.
