Magpul MBUS Rear Flip-Up Sight for AR-15, FDE

The Magpul MBUS rear sight is a folding backup sight designed for AR-15/M16 platforms and most 1913 Picatinny rail-equipped platforms. Its polymer construction, dual apertures, and windage adjustment provide a practical sighting option for compatible rifles.

Key Specifications

• The sight is a rear folding backup sight for compatible rifle platforms.
• The body uses polymer construction.
• The finish is Flat Dark Earth.
• The sight is specifically tailored to the AR-15/M16 platform.
• The base is configured for a 1913 Picatinny rail.
• The dual apertures are same-plane flip apertures.
• The sight provides windage adjustment through a detent knob.
• Adjustment is 0.7 MOA per click with a 14.5-inch sight radius.
• Adjustment is 0.5 MOA per click with a 20-inch sight radius.
• The sight is made in the USA.

Spring-loaded deployment allows the sight to be activated from either side or by pressing the top release, while protective wings shield the apertures. It can fold with either aperture selected. Installation is not suitable for a railed gas block because of excess heat, and it is not compatible with MOE hand guards; the front MBUS must be mounted on a railed fore-end on the same plane as the receiver rail.

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