Magpul MBUS 3 Front Iron Sight FDE Flat Dark Earth
Magpul Industries
$37.95
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Magpul Industries
Magpul MBUS 3 Front Iron Sight FDE Flat Dark Earth
The Magpul MBUS 3 Front Sight in Flat Dark Earth is the next generation of Magpul's legendary backup iron sight line, combining the best of the original MBUS and MBUS Pro into one ultra-low-profile, feature-packed package.
- Ultra-slim folded profile at just 0.44" high and 1.15" wide
- Impact-resistant polymer construction keeps weight minimal without sacrificing durability
- Spring-loaded, ambidextrous push-button deployment for fast one-handed use
- Deploys to standard AR height for seamless co-witnessing with optics
- Tool-less elevation adjustment lets you zero quickly in the field
- Dual-width enhanced front sight post inspired by the MBUS Pro design
Who This Is For
The Magpul MBUS 3 Front Sight is ideal for AR-15 and MSR platform shooters who want a reliable, low-profile backup sight that won't interfere with optics or add unnecessary bulk. Whether you're running a red dot or LPVO as your primary, the MBUS 3 gives you fast, dependable iron sight capability the moment you need it — making it a smart choice for home defense builds, competition setups, and duty rifles alike. The FDE finish pairs perfectly with coyote and tan-colored rifles or accessories.
Specifications
| Brand | Magpul Industries |
|---|---|
| Model | MBUS 3 Front Sight |
| Color / Finish | Flat Dark Earth (FDE) |
| Material | Impact-resistant polymer |
| Folded Height | 0.44" |
| Width (Folded) | 1.15" |
| Deployed Height | Standard AR height |
| Deployment | Spring-loaded, ambidextrous push-button |
| Elevation Adjustment | Tool-less |
| Compatible Platforms | AR-15 / MSR (Picatinny/M1913 rail) |
| Country of Origin | USA |
Frequently Asked Questions
Is the Magpul MBUS 3 Front Sight compatible with my AR-15?
Yes. The MBUS 3 Front Sight is designed to mount on any standard Picatinny (MIL-STD-1913) rail, which is found on the vast majority of AR-15, AR-10, and MSR-platform rifles. It deploys to standard AR sight height, making it compatible with most handguards and gas block configurations that include a rail section at the front of the rifle.
Can the MBUS 3 co-witness with a red dot or holographic sight?
Absolutely. The MBUS 3 deploys to standard AR height, which allows it to co-witness with popular optics like the Aimpoint Micro, EOTech, and similar sights. Depending on your optic's mount height, you may achieve either absolute or lower-third co-witness. Its ultra-low folded profile ensures it stays out of the way when your primary optic is in use.
Do I need any tools to install or adjust the MBUS 3 Front Sight?
Installation requires only a Picatinny rail and the included hardware — no special tools are needed. Elevation adjustment is completely tool-less, allowing you to make field adjustments quickly and easily without carrying extra equipment. Windage adjustments on a front sight are typically made at the rear sight, so pairing the MBUS 3 with the matching MBUS 3 Rear Sight is recommended for a complete backup sight system.
