Magpul MBUS 3 folding rear sight

Magpul MBUS 3 folding rear sight

The Magpul MBUS® 3 is a compact polymer rear sight designed to be used as an alternative to the main optic. It mounts to M1913 Picatinny rails, quickly deploys, and provides reliable backup sighting on AR10, AR15, M4, M16, M110, SR25 platforms.

Main features:

• Compact size when folded (~1.4 cm height above rail, 3.5 cm width)
  
• Spring-loaded folding with ambidextrous button for quick deployment
  
• Tool-free lateral rear sight adjustment
  
• Quick aperture selection (two options: wide for close distances/low light and narrow for long distances)
  
• Impact-resistant polymer for lightness and durability against operational stress
  

Advantages:

• Lightweight (30g with mount) and minimal profile
  
• Quick unfolding and flexible adjustments without tools
  
• Reliability in the field
  

Characteristics:

• Height above rail when folded: ~1.4 cm.
  
• Weight with attachment: 30 g (1.06 oz)
  
• Height of the center of the aperture above the rail: 3.6 cm.
  
• Width at widest point: 3.5 cm.
  

Magpul MBUS® 3 is a reliable and compact backup rear sight for AR platforms. Made in the USA.