Description
The Magpul MBUS 3 Rear Sight is a compact, polymer folding back-up sight designed for AR-platform rifles. It provides a low-profile option that sits at standard AR-height when deployed and is built for quick, reliable deployment. The sight uses spring-loaded technology with an ambidextrous push-button for fast access and includes a rapid-select rear aperture with windage adjustment. Its reduced footprint compared to earlier MBUS models helps preserve optics and mounted accessories while remaining robust for routine use.
Key Specifications
Manufactured by Magpul Industries.
Model is the MBUS 3 Rear Sight.
Fits AR-10/AR-15/M-4/M16/M110/SR-25 platforms.
Mounts to a Picatinny Rail base configuration.
Constructed from impact-resistant polymer for lightweight durability.
Finished in Flat Dark Earth (FDE) to match common rifle coatings.
Deploys with a ambidextrous push-button spring-loaded mechanism.
Features a windage-adjustable rapid-select aperture rear system.
Provides 50 MOA of windage adjustment per manufacturer attributes.
Made in the USA.
Durable, low-profile, and purpose-built for use as a dependable backup on optic-equipped rifles, the MBUS 3 Rear Sight blends compact dimensions with user-focused features like ambidextrous deployment and a rapid-select aperture. Its polymer construction and FDE finish make it a practical choice for shooters seeking a reliable folding rear sight that complements modern AR-platform setups.
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