The MBUS (Magpul® Back-Up Sight) Pro is a corrosion-resistant all-steel back-up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller than its size.
The dual aperture, windage adjustable rear and no-tool, elevation adjustable front excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks. Positive detents keep the MBUS Pro Front and Rear at standard AR sight height when deployed, and so low when they are stowed that you'll never notice them until they're needed. Narrow width front sight is compatible with most IR aiming laser and light installations for the professional user.
Made in the USA.
NSN: MAG275-BLK 1005-01-629-5549
ALL STEEL CONSTRUCTION
Case-hardened and finished with Melonite QPQ™ for extreme resistance to wear and corrosion
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.432 HEIGHT ABOVE RAIL AT TALLEST POINT AND COVERS LESS THAN 1-5/8" OF RAIL WHEN STOWED
STANDARD AR SIGHT HEIGHT WHEN DEPLOYED
Positive detents in both the up and down positions as well as on the elevation knob
ELEVATION ADJUSTMENT KNOB
Elevation adjustment knob – no tools required
Steel, rectangular sight post selectable between Match and Standard widths:
.04” Match width for increased precision .06” Standard width for maximum visibility
EXPORT NOTICE: This is an item controlled for export by the Export Administration Regulations (EAR) under the Commerce Control List (CCL). These controls take the form of export regulations and license requirements. As part of the express consideration provided for receipt of Magpul's goods, technical data and/or services, you, our customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by Magpul in violation of U.S. law is prohibited. Customers acquiring controlled goods, technical data and/or services from Magpul shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws. (See Magpul Compliance Notices page for more information).
WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Magpul Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.
Technical Specifications
More Information
Position
Front
Height above rail, stowed
~0.43 in. max
Length, stowed
1.6 in.
Weight
1.5 oz.
Other Specs
COMPATIBILITY
Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail including receiver-height gas blocks.
ELEVATION ADJUSTMENT
~1 MOA (1.131”/100 m) per click with a 14.5" sight radius ~0.7 MOA (0.820”/100 m) per click with a 20" sight radius
*NOTE: All MBUS Pro Front Sights now come factory-equipped with the Enhanced Front Sight Post. There is no need to order one separately unless you are retrofitting an older MBUS Pro front sight. Enhanced Front Site Posts are not compatible with standard MBUS polymer sights.
MADE & ENGINEERED IN THE USA
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on orders over $75 
100% SATISFACTION
guaranteed 
