Magpul Industries MBUS Back-Up Sight - Front GEN 2
Magpul Industries MBUS Back-Up Sight - Front GEN 2
Magpul Industries MBUS Back-Up Sight - Front GEN 2
Magpul Industries MBUS Back-Up Sight - Front GEN 2

Magpul Industries MBUS Back-Up Sight - Front GEN 2

MSRP: $39.95
The new MBUS (Magpul Back-Up Sight) GEN 2 is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform.

Made in U.S.A.


  • 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
  • Reduced size for greater optics compatibility
  • Spring-locking front sight post holds consistent elevation


  • Weight, w/ hardware: 1.2 oz.
  • Height above rail, stowed: ~0.51 in.
  • Length, stowed: 2.6 in.
  • Length, deployed: 1.5 in.

    NOTE: 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.
  • Reviews
    2 Reviews
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    50% Recommend this product (1 of 2 responses)
    By Dan
    December 12, 2016
    Great sights!
    Delivered on time. Still waiting on rear sight, so I have not been able to test them out, but front sight went one without a hitch. Back sight is on back-order for who knows how long, so I'll be looking for other outlets that might have it.
    By joe
    November 23, 2012
    Great Product
    This is my first Magpul product and I am impress, you can't beat this product for the price. I don't use my BUIS all that often so I didn't want to spend over $100 on a Front and rear sight setup that I would not use that often. Magpul does the job at an affordable price.
    2 Questions & 2 Answers
    from http asked:
    October 29, 2014
    can aftermarket nite site "tritium"post/aperture
    1 Answers
    Yes. MAGPUL MBUS uses a standard AR FSP. You should be able to swap it with any of the tritium models. XS and Trijicon make quality replacements.
    on October 29, 2014
    from Thibodaux, La

    Jimmy White
    from Ft.Worth TX asked:
    March 29, 2014
    I have this mounted on a Sig Sauer 716. Where can I get the adjustment tool and can I purchase it separate ??
    1 Answers
    we do apologize but we do not show that we sell the sight adjustment tools by themselves.
    Customer Service
    on March 31, 2014

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