The Magpul MBUS 3 Front Sight in black is a flip-up backup front sight for Picatinny rails. Elevation adjusts without tools, a change from earlier MBUS front sights that needed an A2 front sight tool. The front post is a dual-width design similar to the MBUS Pro.
The MBUS 3 is Magpul’s third-generation polymer backup sight, much slimmer than the earlier MBUS at just 0.44 inch tall folded and 1.15 inches at its widest. It’s made of Magpul’s impact-resistant polymer, so it stays light and durable. Spring-loaded deployment pops it up with an ambidextrous push button on top. The black color is specific to this configuration and gives a clear visual distinction from the other versions in the line.
It sits at standard AR height when deployed, so it co-witnesses with most optics. Pair it with the MBUS 3 rear sight for a matched set. The finish is easy to overlook when several versions use the same dimensions and hardware, so compare the full model description. Browse more optics and rangefinders.
- Tool-less elevation adjustment
- Dual-width front post
- 0.44 inch folded height
- Ambidextrous push-button deployment
