The Magpul MBUS (Magpul Back-Up Sight) Front Flip-Up Sight (brand part number MAG247-ODG) is an Olive Drab Green, color-injection-molded polymer back-up front sight tailored specifically to the AR-15 and M16 platform. It’s adjustable for elevation and fits most 1913 Picatinny-railed hand guards, with a spring-loaded design that flips up easily from either side or by pressing the top release. Protective wings shield the spring-locking A2-style front sight post, and the sight provides the same height over bore as standard A2 sights, giving shooters a proven, low-cost backup when a primary optic goes down. The OD Green finish matches olive and woodland-pattern builds.

Key Specifications

• Molded from low-cost, color-injection-molded polymer in an Olive Drab Green finish.
• Built specifically for the AR-15/M16 platform.
• Adjustable for elevation and fits most 1913 Picatinny-railed hand guards.
• Deploys via a spring-loaded flip-up design, activated from either side or the top release.
• Protected by wings that shield the spring-locking A2-style front sight post.
• Provides the same height over bore as a standard A2 front sight.
• Adjusts at 1.6 MOA per click with a 14.5 inch sight radius, or 1.2 MOA per click at 20 inches.
• Must mount to a railed fore end on the receiver’s plane; not compatible with railed gas blocks or MOE hand guards.
• Made in the USA by Magpul.

Frequently Asked Questions

Will this match my OD Green build? Yes, this sight is finished in Olive Drab Green to match olive and woodland-pattern rifles.

Can this mount to a railed gas block? No, it cannot be mounted to a railed gas block due to excess heat, and it also isn’t compatible with MOE hand guards.

Is this sight adjustable? Yes, it’s adjustable for elevation, with click values that change based on sight radius.

Buy the Magpul MBUS Front Flip-Up Sight – OD Green

Add a proven, low-cost back-up sight in a finish that matches your OD Green build. Order it from our Magpul Industries lineup, part of our gun sights selection, at our Lubbock, Texas gun shop for fast, direct shipping.