The Magpul MBUS Pro (Magpul Back-Up Sight) is a all-steel corrosion-resistant back-up sighting solution that delivers maximum strength and functionality 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 Sights 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 is compatible with most IR aiming laser and light installations for the professional user.
Made in the USA.
ALL STEEL CONSTRUCTION Case hardened and finished with Melonite QPQ for extreme resistance to wear and corrosion.
WINDAGE ADJUSTABLE WITH LOW-PROFILE KNOB No tools required.
POSITIVE DETENTS IN BOTH THE UP AND DOWN POSITIONS Standard AR sight height when deployed.
Technical Specifications Position: Rear Height above rail, stowed: ~0.37 in. Length, stowed: 2.1 in. Weight, w/ hardware: 1.80 oz.
Other Specs Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail. Aperture height over rail: 1.41 in. Small aperture dia.: 0.07 in. Large aperture dia.: 0.19 in.
Windage Adjustment ~0.5 MOA (0.566"/100m) per click with a 14.5" sight radius. ~0.4 MOA (0.410"/100m) per click with a 20" sight radius.
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WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.