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Magpul MAG247 Back-Up Sight, Front

In stock
From CA$64.87

The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits most Picatinny-railed hand guards, and is specifically tailored to the AR-15/M16 platform.


  • Impact-resistant polymer construction is lightweight 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.
  • Protective wings shield the spring-locking A2 front sight post
  • Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools work too
  • Made in U.S.A.


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

Elevation Adjustment

  • ~1.6 MOA (1.886"/100m) per click with a 14.5" sight radius
  • ~1.2 MOA (1.367"/100m) per click with a 20" sight radius

You get:

  • (1) MBUS® Sight – Front

Compatible with:

  • Any picatinny rail
  • Provides the same height-over-bore as standard A2 irons

Installation Difficulty: 

Tools required: none

Installation notes: none

Model numbers:

  • MAG247-BLK - Black
  • MAG247-FDE - Flat Dark Earth
  • MAG247-FOL - Foliage Green
  • MAG247-GRY - Stealth Gray
  • MAG247-ODG - Olive Drab Green