MAGPUL MBUS REAR SIGHT ODG

Description

The Magpul MBUS Rear Sight in Olive Drab Green is a folding backup sight built for AR-15 and M16 platforms, intended for shooters who want a reliable secondary aiming solution that stays out of the way until it’s needed. It mounts to any M1913 Picatinny rail and is specifically dimensioned for standard AR sight height, placing the center of the aperture 1.42 inches above the rail when deployed — meaning it indexes correctly with the MBUS Front Sight without any guesswork or shimming.

The spring-loaded deployment mechanism matters in practice: a single button press snaps the sight up and into position, and the same motion in reverse stows it flat. There’s no tool required and no fumbling when conditions change. Windage adjustment works through a rotating wheel that moves in repeatable detents, so you can make corrections in the field and know the setting will hold under hard use without drifting.

The dual-aperture window rotates between a wide opening and a narrow one. The wider aperture gives a faster sight picture at close range or in low light, while the narrower aperture improves precision for longer shots — both are accessible quickly, and detents keep whichever you select locked in place. When stowed, the sight sits just 0.51 inches above the rail, low enough to stay clear of optics or a forward sight picture without adding bulk to the rifle’s profile. Construction throughout is impact-resistant polymer, which keeps weight at 1.3 ounces including hardware. Made in the USA.