Magpul MBUS 3 Flip-Up Front Sight - Olive Drab Green for AR-15/AR-10/M16/M4 (MAG1166-ODG)
$31.01
$39.95
(You save
$8.94
)
- Type:
- Sights - Front
- Firearm Group:
- AR Platform
- Firearm Fit:
- AR-10/AR-15/M-4/M16/M110/SR-25
- Front Color:
- Black
- Base Configuration:
- Picatinny Rail
- Elevation Adjustment:
- 1 MOA/ 0.7 MOA
- Frame Material:
- Polymer
- Front Material:
- Polymer
The Magpul MBUS 3 flip-up front sight for AR-15/AR-10, M16, and M4 platforms brings lightweight backup iron sight capability to your rifle without the bulk. Built from impact-resistant polymer, this sight combines the refined design of Magpul's Pro line with the legendary durability and value that made the original MBUS a standard in the AR world. Whether you're running optics as your primary system or building a rifle that needs a reliable mechanical fallback, the MBUS 3 front sight delivers the dependability you expect from Magpul in a package that won't slow you down.
At just 0.44 inches when folded, the MBUS 3 sits flush against your receiver rail and won't interfere with your sight picture, mounted optics, or carry. The ambidextrous push-button deployment gets the sight up and ready in a fraction of a second—spring-loaded reliability means no fumbling or guessing whether it's fully extended. Tool-less elevation adjustments let you fine-tune zero without adding to your field kit, and the dual-width front sight post gives you flexibility for different lighting conditions and target distances.
Clamps securely to any MIL-STD-1913 Picatinny rail found on modern AR platforms. When deployed, it sits at standard AR-height, cowitness-ready with most optic systems. Made in the USA, the MBUS 3 is the no-frills backup sight for serious shooters who don't accept compromise between function and simplicity.
Key Features
- Spring-loaded flip-up design with ambidextrous push-button deployment
- Impact-resistant polymer construction—lightweight and durable
- Compact profile: 0.44" folded, 1.15" at widest point
- Tool-less elevation adjustment for field-stripped zero changes
- Dual-width enhanced front sight post
- Standard AR-height when deployed
- Fits MIL-STD-1913 Picatinny rails
- Made in the USA
Specifications
| Brand | Magpul |
| Model | MBUS 3 Front Sight |
| Color | Olive Drab Green |
| Part Number | MAG1166-ODG |
| Compatibility | AR-15, AR-10, M16, M4 (MIL-STD-1913 Picatinny rail) |
| Height (Folded) | 0.44 inches |
| Width (Max) | 1.15 inches |
| Material | Impact-resistant polymer |
| Adjustment Type | Tool-less elevation |
| Deployment | Spring-loaded, ambidextrous push-button |
| Sight Post | Dual-width enhanced |
| Country of Origin | USA |
Frequently Asked Questions
Will the MBUS 3 front sight work with my AR-15?
Yes. The MBUS 3 is designed for AR-15, AR-10, M16, and M4 platforms. It clamps to any standard MIL-STD-1913 Picatinny rail on your rifle.
Does this sight cowitness with typical AR optics?
The MBUS 3 sits at standard AR-height when deployed, so it will cowitness with most common optic systems mounted on your upper receiver.
Can I adjust the sight without tools?
Yes. The MBUS 3 features tool-less elevation adjustment, so you can fine-tune your zero in the field without special equipment.
How compact is the folded sight?
When folded, the MBUS 3 is just 0.44 inches tall, allowing it to stay out of the way under mounted optics and in your carry setup.
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