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Mission First Tactical Back Up Polymer Flip-Up Rear Sight

  • The Back Up Polymer Flip Up Rear Sight with Windage Adjustment (BUPSWR) mounts onto a 1913 Picatinny rail. A flat head screw driver is required to adjust an Infinite MOA. Unlike other backup sights MFT has developed a shroud that shelters the aperture from debris and impact damage when not deployed. A slim profile allows the sight to sit under all current magnifiers and optics. Manufactured using a specially developed Military Grade reinforced, super tough polyamide. MADE IN THE USA.
  • Low profile snag resistant design
    • Shroud protects aperture from debris and impact damage
    • Dual peep, same plane aperture allows for perfect co-witness
    • Infinite MOA
    • Unique closure with either aperture deployed
    • Can fold to the rear, the correct direction if dropped
    • Sight works in conjunction with all standard height front sights
    • Manufactured using a specially developed Military Grade reinforced, super tough polyamide
    • Flip Up
  • The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible.
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  • No questions have been submitted regarding this product. If you have a question regarding this, or any of our other products, please submit them by emailing We will return your email promptly and post both the question and answer here for our other customers to view. Remember, there are no dumb questions... Thank you, MSR Arms

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