Magpul® MBUS® Sight - Front and Rear

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The Magpul MBUS Front and Rear Sights are low-cost, color injection molded, folding back-up sights. The front sight is adjustable for elevation while the dual aperture rear sight is adjustable for windage. Both sights fit most 1913 Picatinny rail equipped weapons, but are specifically tailored for the AR-15/M16 platform.


  • Impact resistant polymer construction provides light weight and resists operational abuse
  • Spring-loaded flip up sight easily activated from either side or by pressing the top
  • Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
  • Clamps to most any MIL-STD-1913 Picatinny/STANAG 4694 railed hand guard* and provides the same height-over-bore as standard A2 irons
  • Protective wings shield the spring-locking A2 front sight post
  • Sight can still be folded with either large or small aperture in position
  • Detent knob easily and positively adjusts windage

SKU: STAG300012


Q: Can the front sight be installed on a railed gas block?

A: Front sight cannot be mounted to a railed gas block due to excess heat issues. Front MBUS must be mounted to a railed fore end on the same plane as the receiver rail. Because of this the sight is also not compatible with MOE Hand Guards.

7 Reviews

  • 5
    Mbus sights

    Posted by Peter on 13th Apr 2021

    Cheapest I could find. Ordered 2 sets. Came promptly. A+

  • 5
    Magpul flip up sights

    Posted by Robert Jackson on 10th Apr 2021

    Easy to install very nice flip up sight.

  • 5
    Magpul MBUS Sight

    Posted by DAVID P Penrod on 15th Mar 2021

    Easy to put on and they look really strong for wear.

  • 5
    Good purchase

    Posted by Jason R. on 14th Jan 2021

    Easy to install and adjust. Durable material. Right springs. The low profile works perfect for the case my weapon is in.

  • 5
    Magpul sights

    Posted by Christopher Lopez on 30th Dec 2020

    Brought these as back up sights for my ar pistol fit fine are good quality and easy to adjust

  • 5
    Magpul MBUS

    Posted by Aaron on 8th Dec 2020

    These are just the exact sights I needed for my 300 AAC build. Fit is perfect and they don't move. Great price from Stag.

  • 5
    Magpul MBUS Sight

    Posted by John S on 1st Sep 2017

    I just got my new Magpul MBUS sights for my recently purchased Stag Stealth Upper and they fit great !, Easy to install and at a great price from Stag, my new favorite site to shop for quality rifle parts and accessories..I would highly recommend them for your next purchase.