Magpul AR-15 MBUS Rear Sight

4.6 out of 5 star rating (32 reviews)
$55.99 / $50.39 Member
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    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • Tough polymer
  • Spring loaded
  • Easy clamp-on
  • Windage adjustable

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The MBUS (Magpul Back-Up Sight) 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. A must for dead-on accuracy!

  • Impact-resistant polymer construction resists operational abuse
  • Spring-loaded flip-up sight is easily activated from either side or by pressing the top
  • Spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
  • Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail
  • Provides the same height-over-bore as standard A2 iron sights
  • Protective wings shield the dual, same plane flip apertures
  • Sight can still be folded with either large or small aperture in position
  • Knob easily and positively adjusts windage

Eyeball the precision by ordering today!

Key Specifications

  • Item Number: 689521
  • Windage adjustment:
  • ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius
  • ~0.5 MOA (0.547"/100m) per click with a 20" sight radius
  • Height above rail, stowed: ~0.51"
  • Length: Stowed: 2.6", deployed: 1.5"
  • Weight with hardware: 1.3 ozs.
  • Mfg. Number: MAG248
Magpul AR-15 MBUS Rear Sight
Magpul AR-15 MBUS Rear Sight
$55.99 / $50.39 Member
4.6 out of 5 star rating (32 reviews)