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Magpul AR-15 MBUS Front Sight
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$37.99
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SKU: WX2*0689520
Overview
Built as a folding back-up sight for AR-15/M16 setups, this front sight is intended for use on most MIL-STD-1913 Picatinny or STANAG 4694 railed hand guards. It offers elevation adjustment and includes a tool for setup, while the spring-loaded flip-up design can be deployed from either side or by pressing the top. The impact-resistant polymer construction keeps the sight lightweight, and the folding profile helps it stay out of the way when not in use. Protective wings surround the A2 front sight post, making it a practical option for hunters and shooters who want a simple, rail-mounted backup sighting solution.
Why Hunters Choose the Magpul
Adjustable Elevation
To support front sight zeroing
Fits Most
MIL-STD-1913 Picatinny and STANAG 4694
Specifically Tailored
To the AR15/M16 platform
Spring-loaded Flip-up
Design activates from either side
Impact-resistant Polymer
Construction is lightweight and built
Key Features
- Low-cost, color injection molded folding back-up sight
- Adjustable for elevation
- Fits most MIL-STD-1913 Picatinny and STANAG 4694 railed hand guards
- Tailored to the AR15/M16 platform
- Impact-resistant polymer construction
- Spring-loaded flip-up design activates from either side or by pressing the top
- Includes elevation adjustment tool; works with most aftermarket A2 front sight tools
Best Used For
- AR-15 or M16 owners needing a folding front backup sight for a Picatinny-railed hand guard
- Hunters who want a low-profile sight that stays folded until needed
- Shooters who prefer an adjustable front sight with included elevation tool
- Users building a rifle setup around standard A2 iron sight height-over-bore
- Anyone wanting a polymer backup sight for general range or field use
Specifications
| Activation | From either side or by pressing the top |
|---|---|
| Adjustable For Elevation | Yes |
| Aftermarket A2 Front Sight Adjustment Tools Compatible | Yes |
| Back Up Sight | Yes |
| Color | Color injection molded |
| Compatibility | Fits most 1913 Picatinny-railed hand guards |
| Elevation Adjustment Tool Included | Yes |
| Folding | Yes |
| Front Sight Post | A2 front sight post |
| Height Over Bore | Same as standard A2 iron sights |
| Material | Impact-resistant polymer |
| Platform | AR15/M16 |
| Protective Wings | Yes |
| Rail Compatibility | MIL-STD-1913 Picatinny/STANAG 4694 |
| Sight Type | Front Sight |
| Spring Loaded | Yes |
Pros
- Adjustable for elevation to support front sight zeroing.
- Fits most MIL-STD-1913 Picatinny and STANAG 4694 railed hand guards.
- Specifically tailored to the AR15/M16 platform.
- Spring-loaded flip-up design activates from either side or the top.
- Impact-resistant polymer construction is lightweight and built for operational abuse.
- Includes an elevation adjustment tool; compatible with most aftermarket A2 tools.
Considerations & Trade-offs
- Designed as a back-up sight rather than a primary optic solution, so it’s best suited to rifles already set up with a compatible sighting system.
- Fits most 1913 Picatinny-railed hand guards, but it is specifically tailored to the AR15/M16 platform, so compatibility should be confirmed before purchase.
- The front sight is adjustable for elevation, but the product does not include broader sighting-system features beyond that single adjustment.
- Polymer construction keeps weight down and supports folding use, but it may not appeal to buyers who prefer metal sight components.
Suggested Comparisons
- Fixed iron sights
- Rear backup sights
- Picatinny rail accessories
Suggested Accessories
- Front sight adjustment tool
- Picatinny rail hand guard
- Rear backup sight
- Sight installation tool
Frequently Asked Questions
What rifles or rail systems is the MBUS Front Sight meant to fit?
It fits most 1913 Picatinny-railed hand guards and clamps to most MIL-STD-1913 Picatinny/STANAG 4694 railed hand guards. It is specifically tailored to the AR15/M16 platform.
Is the front sight adjustable?
Yes. The MBUS Front Sight is adjustable for elevation.
How does the sight deploy and fold?
It is a spring-loaded flip-up sight that can be activated from either side or by pressing the top. Spring pressure keeps it erect, while allowing it to fold under impact.
What material is the MBUS Front Sight made from?
The source describes it as impact-resistant polymer. No other material details are provided.
Does it include the tool needed for elevation adjustment?
Yes. An elevation adjustment tool is included, and the description also says most aftermarket A2 front sight adjustment tools can be used.