The Magpul MBUS or Magpul Back Up Sight system has a front and rear flip sights that are rugged and something every shooter needs in case their primary optic goes down. The MBUS comes in several color patterns to choose from.
- Made of high quality DuPont Polymer
- Box set – Front and Rear Site.
- PTS version MBUS will come with a key to adjust front sight pole
Colors: Black, Foliage Green, Dark Earth