MBUS – Magpul Back-Up Sight – Rear, Black

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight.  The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.  Made in U.S.A.

• Spring loaded, folding back-up sight.
• Same plane dual flip apertures.
• Lightweight reinforced polymer construction.
• All mounting hardware included
• Free Shipping!
• Made in the USA!