Magpul MBUS 3 Front Sight FDE — Folding Flip-Up

Description

The Magpul MBUS 3 Front Sight is a low-profile, flip-up backup front sight designed for AR-platform rifles. Constructed from impact-resistant polymer and finished in Flat Dark Earth (FDE), it combines a compact folded profile with a standard AR-height when deployed. The sight uses spring-loaded technology and an ambidextrous push-button for positive, one-handed deployment, and it features tool-less elevation adjustment for quick zeroing.

Key Specifications

• The style is Folding Back Up Sight.
• The material is impact-resistant polymer.
• The color is Flat Dark Earth (FDE).
• The sight fits AR-10/AR-15/M-4/M16/M110/SR-25 platforms.
• The base configuration is Picatinny Rail.
• The elevation adjustment is 1 MOA per click (tool-less).
• Deployment is spring-loaded with an ambidextrous push-button.
• The sight sits at standard AR-height when deployed.
• Manufacturer is Magpul Industries — Made in the USA.

The MBUS 3 Front Sight offers a durable, minimal-profile backup sight solution for shooters who value reliable, serviceable gear. Its polymer construction keeps weight low while maintaining toughness, and the tool-less adjustment plus positive deployment make it practical for a variety of field and range uses. Ideal as a backup to optics or as a lightweight iron-sight option, the MBUS 3 integrates cleanly on Picatinny-equipped AR-platform fore-ends.

Mounting notes: This front sight cannot be mounted to a railed gas block due to excess heat issues and must be mounted to a railed fore end on the same plane as the receiver rail; it is not compatible with MOE hand guards.