The Magpul MBUS Rear Sight is a folding flip-up sight designed specifically for AR platforms. This Magpul backup sight is constructed of impact-resistant polymer that resists operational abuse. A spring-loaded flip-up system easily deploys from either side, where detent and spring pressure keep the sight in place. Protective wings prevent damage to the aperture to ensure accurate aim, while a detent knob offers quick windage adjustment. Compatible with most 1913 Picatinny receiver rails, the Magpul MBUS Rear Sight offers a dual aperture backup sight tailored to AR15/M16 platforms.

Specs:

• Model #: MAG248
• Length Stowed: 2.6 in.
• Length Deployed: 1.5 in.
• Weight with Hardware: 1.3 oz.
• Height above Rail (Stowed): 0.51 in.
• Center of Aperture to Top of Rail: 1.42 in.
• Windage Adjustment:
  • ~0.5 MOA (0.547in./100m) per click with a 20 in. sight radius
  • ~0.7 MOA (0.754 in./100m) per click with a 14.5 in. sight radius