Magpul MBUS Rear Sight

Magpul MBUS Rear Sight – Polymer Flip-Up Backup Iron Sight

The Magpul MBUS (Magpul Back-Up Sight) Rear is a lightweight, polymer flip-up backup iron sight designed for AR-15 and MSR platforms. Spring-loaded for instant deployment, it folds flat when not in use to clear the way for your primary optic, then snaps up reliably when you need it. Adjustable for windage with a dual-aperture design — a large aperture for close-range and low-light use, and a smaller aperture for precision shooting.

Fits standard MIL-STD-1913 Picatinny and M-LOK compatible rails. Durable glass-filled nylon construction. Made in the USA.

• Type: Flip-up backup rear iron sight (BUIS)
• Adjustment: Windage adjustable
• Apertures: Dual (large and small)
• Compatibility: MIL-STD-1913 Picatinny rail
• Material: Glass-filled nylon polymer
• Origin: Made in the USA

Available at Glenwood Springs Outdoors, 831 Grand Ave, Glenwood Springs, CO.