Magpul MBUS 3 Front Sight

The Magpul MBUS 3 Front Sight is a compact folding backup sight for AR platforms that combines lightweight construction with durable polymer design.

Compact profile

When folded, the sight maintains a very low profile and reduces the risk of snagging on equipment or gear.

Fast ambidextrous operation

The spring-loaded design enables rapid deployment using ambidextrous controls.

Tool-less elevation adjustment

Elevation can be adjusted without tools, allowing quick corrections for different shooting distances.

Two front sight widths

The MBUS 3 Front Sight includes a standard-width front post for improved visibility and a narrower match-style option for increased precision.

• Type: folding front sight
• Position: front
• Compatible with: M1913 Picatinny rails
• Platform: AR-15 / M4 and AR-10 / M110
• Material: polymer
• Height folded: 1.2 cm
• Width: 3.5 cm
• Weight: 25 g
• Features: spring-loaded deployment, ambidextrous controls, tool-less elevation adjustment, two front post widths