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Magpul MBUS Front Back Up Sight

Magpul MBUS Front Back Up Sight « »



32.99 $32.99

Save $7.00

Availability: In stock


  • 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.
  • Compatible with MIL-STD-1913 Picatinny/STANAG 4694 Rail Equipped Firearms
  • Provides the same height-over-bore as standard A2 irons
  • Protective wings shield the spring-locking A2 front sight post
  • Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools may be used as well

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Save $7.00

This is a Magpul MBUS Flip-Up Front Sight for use with Standard Picatinny Rails

These MBUS (Magpul Back-up Sight) Front Sights are crafted from rugged, injection-molded polymer and optimized for use with AR-15/M-4 pattern rifles.

Magpul’s MBUS Backup Sights are a practical, affordable and effective addition to any rifle or carbine with a Standard Picatinny Rail, but they’re optimized for use with AR 15/M4 -style platforms. These new Gen 2 MBUS Sights feature improved optics compatibility, reduced size, and a spring-mounted front sight post.

This Magpul MBUS front sight comes with an elevation adjustment tool (compatible with most aftermarket A2 front sight tools). Note that these front sights should NOT be mounted to a railed gas block due to the excessive heat.

Get your MBUS backup sights today, or upgrade to MBUS Pro Sights!


  • MBUS – Front Gen 2
    • Weight, w/ hardware: 1.2 oz.
    • Height above rail, stowed: ~0.51 in.
    • Length, stowed: 2.6 in.
    • Length, deployed: 1.5 in.
Material: Polymer
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