Magpul

Magpul MBUS 3 Back-Up Rear Sight

New

8.800 ISK

Tax included. Shipping calculated at checkout.

Color: FDE

Product variants

A few left in stock – 90% of orders are shipped during the next business day. – Place an order before the product is out of stock. – Subscribe to a Back in stock notification.

Technical details and instructions

Construction & Dimensions

The impact-resistant polymer construction keeps weight low while providing excellent resistance to operational abuse.

Height above rail (deployed, center of aperture to top of rail): 1.42 in.
Height above rail (stowed): ~0.55 in.
Width (max): 1.38 in.
Weight (with hardware): 30 g / 1.06 oz

Windage Adjustment

~0.5 MOA (0.606” / 100 m) per click with a 14.5" sight radius
~0.4 MOA (0.439” / 100 m) per click with a 20" sight radius

Description

The MBUS 3 Rear Sight is a compact, lightweight, spring-loaded flip-up back-up sight made in the USA. Designed for mobility, durability, and reliability, it features impact-resistant polymer construction and a significantly reduced profile compared to previous generations.

This rear sight attaches to most MIL-STD-1913 Picatinny rails and maintains standard AR sight height for broad compatibility across platforms such as AR15, M4, M16, AR10, M110, and SR25.

Features

The MBUS 3 features ambidextrous push-button deployment for rapid activation from the stowed position. The spring-loaded mechanism ensures fast and positive engagement when needed.

The rapid-select rotating aperture system allows you to switch between a wide aperture for close-range or low-light situations and a narrow aperture for longer distance precision shooting.

Windage adjustment is tool-less, allowing quick corrections.

Made in USA.