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The MBUS Pro (Magpul® Back-Up Sight) is an all-steel, anti-corrosion rear sight that provides maximum functionality and strength in a compact size.
The dual aperture, horizontally adjustable rear sight and toolless height adjustable front sight are excellent for all standard Picatinny rail mounts, including rail-height gas blocks.
Retainers hold the MBUS Pro Sight at the standard AR sight height when deployed. At the same time, it is so low when folded that it becomes almost invisible on the weapon.
The rear sight is made of hardened steel with a Melonite QPQ™ coating for exceptional wear and corrosion resistance.
Rotation is adjustable with a low profile knob and requires no additional tools.
Locks in up and down position. Has standard AR sight height when deployed.
Characteristics
Mount: Picatinny rail, STANAG 4694
Horizontal 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
Aperture height over rail: 1.41 in
Small aperture dia.: 0.07 in
Large aperture dia.: 0.19 in
Material: hardened steel with Melonite QPQ™ coating
Height above rail, stowed: 0.37 in
Length, stowed: 2.1 in
Weight: 1.8 oz