FAB Defense FBS Front Backup Sight for AR-15
Black
$34.45
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Compatible with
- Original gear from the manufacturer
- Ships from Israel
- Secure checkout
Specs
| Brand | FAB Defense |
|---|---|
| Model | FBS |
| Type | Front flip-up backup sight |
| Mount | MIL-STD-1913 Picatinny rail |
| Shroud | Angel-wing |
| Elevation | Tool-free |
| Material | Polymer and metal |
| Colors | Black, Flat Dark Earth, OD Green |
Key features
- Angel-wing shroudCenters your aim fast.
- Flips upSpring-locked.
- Tool-free elevationAdjusts by hand.
Questions
What does it mount on?
Any MIL-STD-1913 Picatinny rail, such as on an M4, AR-15 or M16.
Which rear sight pairs with it?
The FAB Defense RBS, forming an optical tunnel.
Can I adjust elevation?
Yes, without tools.
What colors are available?
Black, Flat Dark Earth or OD Green.
FAB Defense in the field
Built for the real world
See It in Action
Official video from the manufacturer.
The Full Rundown
A rugged front backup sight.
The FBS is a low-profile flip-up front sight with an angel-wing shroud and tool-free elevation. Pair it with the FAB RBS rear sight.
The Good
- Angel-wing shroud for faster aiming
- Tool-free elevation adjustment
- Spring-locked deployment
- Low profile, snag-free
- Polymer and metal
Compatibility
- MIL-STD-1913 Picatinny rails (AR-15 / M4 / M16)
The Bottom Line
Pair it with the RBS for a full backup set.