Quick Summary
The Magpul MBUS 3 Flip Up Backup Iron Sights in Flat Dark Earth are a backup iron sight system for everyday rifle use, combining the MBUS 3 design with a back sight setup and a compact folded profile. When folded, it sits at just 0.47 in high, 1.38 in at its widest point, and weighs 25 grams with hardware.
Who It Is Best For
This is suited to buyers who want a compact backup sight option that stays low when folded and can be deployed quickly. It will appeal to anyone looking for a lightweight sight with a reduced size compared with the original MBUS line.
What To Know Before You Buy
The MBUS 3 uses the same spring loaded technology as its predecessor and can be deployed with an ambidextrous push button. It sits at standard height when deployed and includes tool less elevation adjustment of a dual width enhanced front post similar to the MBUS Pro.
Pros: Compact when folded, lightweight, and designed with ambidextrous deployment.
Cons: Check that the selected sight variation matches the setup you need before ordering.
Common Buyer Questions
What is the MBUS 3?
It is Magpul’s backup sight system that follows on from the original MBUS line.
How compact is it when folded?
It sits at 0.47 in high and 1.38 in at its widest point when folded.
How much does it weigh?
It weighs 25 grams with hardware.
How does it deploy?
It uses spring loaded technology and an ambidextrous push button.
Does it have elevation adjustment?
Yes, it includes tool less elevation adjustment of a dual width enhanced front post.
Key Details
| Product type | Backup iron sights |
| Model line | MBUS 3 |
| Brand | Magpul |
| Colour | Flat Dark Earth |
| Folded height | 0.47 in |
| Folded width | 1.38 in |
| Weight with hardware | 25 grams |
| Deployment | Spring loaded with ambidextrous push button |
| Elevation adjustment | Tool less adjustment |
Final Buying View
The Magpul MBUS 3 Flip Up Backup Iron Sights offer a compact, lightweight backup sight option in Flat Dark Earth with quick ambidextrous deployment and tool less elevation adjustment. If you want a reduced size sight with a familiar MBUS design, this is a practical choice. Check the selected sight variation before ordering to make sure it suits your setup.
