Magpul MBUS 3 Rear Iron Sight ODG Olive Drab Green
Magpul Industries
$56.95
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Magpul Industries
Magpul MBUS 3 Rear Iron Sight ODG Olive Drab Green
The Magpul MBUS 3 Rear Sight in Olive Drab Green is the next generation of Magpul's legendary Back-Up Sight system, combining the best of the original MBUS and MBUS Pro into one compact, rugged, and feature-packed flip-up sight for AR-platform rifles.
- Ultra-low profile at just 0.44" high when folded for minimal footprint
- Spring-loaded flip-up design deploys instantly with ambidextrous push-button
- Rapid-select dual aperture system for quick CQB or precision target transitions
- Impact-resistant polymer construction delivers lightweight strength and durability
- Deploys to standard AR-height for co-witness compatibility with most optics
- Olive Drab Green finish blends seamlessly with tactical and mil-spec gear
Who This Is For
The Magpul MBUS 3 Rear Sight is ideal for AR-15 and MSR owners who want a dependable, low-profile back-up iron sight to pair with a red dot or magnified optic. Whether you're a competitive shooter, a hunter in the field, or a home-defense rifle builder, the MBUS 3 ensures you're never left without a reliable aiming solution if your primary optic fails. Its ODG colorway also makes it a natural fit for those running FDE or green-toned builds.
Specifications
| Brand | Magpul Industries |
|---|---|
| Model | MBUS 3 Rear Sight |
| Color | Olive Drab Green (ODG) |
| Material | Impact-Resistant Polymer |
| Folded Height | 0.44 inches |
| Width | 1.15 inches |
| Deployment | Spring-Loaded, Ambidextrous Push-Button |
| Aperture | Rapid-Select Dual Aperture |
| Rail Compatibility | MIL-SPEC Picatinny / 1913 Rail |
| Sight Height | Standard AR Height (when deployed) |
| Compatible Platforms | AR-15, MSR, M4-Style Rifles |
Frequently Asked Questions
Will the Magpul MBUS 3 Rear Sight co-witness with my red dot optic?
Yes. The MBUS 3 Rear Sight deploys to standard AR height, making it compatible for absolute or lower-one-third co-witness with popular red dot sights such as the Aimpoint Micro, Trijicon MRO, and EOTech holographic sights. Always verify co-witness height with your specific optic mount before purchasing.
What is the difference between the MBUS 3 and the original MBUS or MBUS Pro?
The MBUS 3 is a refined evolution that combines the lightweight polymer construction and affordability of the original MBUS with the sleek, low-profile aesthetics of the MBUS Pro. Key improvements include a significantly reduced folded height (0.44" vs. the original MBUS), a more compact width, and the addition of a rapid-select dual aperture system — all while retaining the trusted spring-loaded, ambidextrous deployment.
Can the MBUS 3 Rear Sight be used as a standalone sight without a front sight?
The MBUS 3 Rear Sight is designed to be used as part of a complete iron sight system. For a fully functional back-up iron sight (BUIS) setup, it should be paired with a compatible front sight, such as the Magpul MBUS 3 Front Sight. Using it alone without a front sight post will not provide an accurate aiming reference.
