An AR-15 back up rear sight is a folding or fixed iron sight mounted at the rear of the rifle, providing an alternative aiming solution if optics fail. It offers windage adjustments and pairs with a front sight for accurate targeting. The back up rear sight works with AR-15 upper receivers, Picatinny or Weaver rail systems, handguards, and is compatible with standard front sights. It’s ideal for tactical, hunting, or competition builds, ensuring reliable sighting options in any scenario.
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  • Magpul MBUS Pro Flip Up Backup Rear Sight Black

    Magpul MBUS Pro Flip Up Backup Rear Sight Black
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    Upgrade your firearm with the Magpul MBUS Pro Flip-Up Backup Rear Sight. Crafted from steel with a QPQ Melonite finish, this rear sight features dual apertures and tool-less windage adjustments…

    Original price was: $109.95.Current price is: $104.95.

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