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Friday 09 October, 2015  
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Magpul MBUS Rear AR-15 Black Back Up Sight (MAG248-BLK)

Magpul MBUS Rear AR-15 Black Back Up Sight (MAG248-BLK)

Price:  $48.20

UPC:   873750004358

The new MBUS (Magpul Back-Up Sight) GEN 2 is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, 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 MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons
  • Protective wings shield the dual flip apertures
  • Sight can still be folded with either large or small aperture in position
  • Detent knob easily and positively adjusts windage


  • Weight, w/ hardware: 1.3 oz.
  • Height above rail, stowed: ~0.51 in.
  • Length, stowed: 2.6 in.
  • Length, deployed: 1.5 in.

NEW Features for GEN 2

  • Reduced size for greater optics compatibility (folds to a profile of only approximately a half-inch)
  • Both small and large apertures are on the same plane

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(Images, photographs, descriptions, etc. do not necessarily represent the product in its entirety, they are shown for examples only.)