MAGPUL MBUS Gen 2 Flip-Up Rear Sight | Polymer Backup Iron Sight for AR-15 & M4 Rifles

Upgrade Your AR15 with the MBUS (Magpul® Back-Up Sight)

Enhance your AR15 or M16 with the MBUS (Magpul® Back-Up Sight), a cost-effective, color injection-molded, folding back-up sight designed for reliability and ease of use.

Key Features:

• Spring-Loaded Flip-Up Sight: Easily activated from either side or by pressing the top.
• Protective Wings: Shield the spring-locking A2 front sight post for added durability.
• Impact-Resistant Polymer Construction: Lightweight and resistant to operational abuse.
• Detent and Spring Pressure: Keeps the sight erect but allows for unobstructed folding under impact.
• Clamps to Most MIL-STD-1913 Picatinny Rails: Compatible with most MIL-STD-1913 Picatinny / STANAG 4694-railed hand guards, providing the same height-over-bore as standard A2 irons.

Technical Specifications:

• Position: Front
• Height Above Rail, Stowed: ~0.51 in.
• Length, Deployed: 1.5 in.
• Length, Stowed: 2.6 in.
• Weight (with hardware): 1.2 oz.
• 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

Note: Cannot be mounted to a railed gas block due to excess heat issues. The front MBUS must be mounted to a railed fore end on the same plane as the receiver rail. This sight is also not compatible with MOE Hand Guards.

Why Choose MBUS?

• Cost-Effective: A budget-friendly option without compromising on quality.
• Easy to Install: Simple to mount on your firearm, making it a convenient upgrade.
• Reliable Performance: Trusted by professionals and enthusiasts for its dependable performance.

Order your MBUS (Magpul® Back-Up Sight) today and experience the difference in accuracy and reliability. Perfect for both professional use and recreational shooting, this sight is a must-have for any serious AR15 or M16 owner.