Magpul MBUS PRO AR-15 Rear Sight 45 Offset Black – MAG526

The Magpul MBUS PRO AR-15 rear sight in the 45 degree offset configuration is a steel backup sight that mounts at an angle to your primary optic, giving you a second aiming solution with a simple roll of the rifle. Finished in black, it folds down out of the way until the moment you need it.

Offset irons solve a specific problem, and they solve it faster than any other option on the rack.

When a Magpul MBUS PRO AR-15 Offset Sight Makes Sense

If your rifle wears a magnified optic, close targets can be slow to find. A 45 degree offset sight lets you cant the rifle, pick up the iron sight instantly and take the shot without touching your magnification ring or removing your primary optic. Competitors use this constantly, and so do shooters running a scope on a duty or defensive rifle.

It also works as a genuine backup. Optics can fail, batteries die and glass can fog or break, and an offset iron sight is always there, needing nothing and weighing almost nothing. From Magpul, the PRO line is the all steel version of the MBUS family, built for people who want metal rather than polymer.

Features of the PRO Offset Design

This sight is deliberately minimal, and every element earns its place.

• All steel construction for durability and a positive, solid detent when deployed.
• 45 degree offset mounting that puts the sight in line when the rifle is canted.
• Flip up design that folds flat against the rail when not in use.
• Rear aperture sight compatible with standard AR-15 sighting geometry.
• Melonite style black finish that resists corrosion and glare.
• Low profile footprint that leaves rail space for lights, lasers and optics.

Fit, Rail Space and Setup

Offset sights work as a pair, so plan for a matching offset front sight when you set up your rifle. Mount the front sight as far forward on the top rail as your handguard allows and the rear as far back as your receiver allows, because sight radius still governs precision even on a backup sight.

Choose your cant direction based on your dominant hand. Right handed shooters typically roll the rifle inboard to the left, which puts the sights at the correct angle when mounted on the right side of the rail. Dry practice the transition before you buy a second set in the wrong orientation.

Deployment, Practice and Care

Practice the roll until it is automatic. The whole advantage of an offset sight is speed, and speed comes from repetition rather than from hardware. Work the transition from optic to irons and back at close distance until your head position stops changing.

Confirm zero for the offset sights separately from your primary optic, since they sit at a different height and angle and will not share the same point of impact. Record both zeros and check them at least once a season.

Rail space planning is worth doing before you order. A Magpul MBUS PRO AR-15 offset rear sight is compact, but it still needs a clear stretch of Picatinny at the rear of the receiver, and your optic mount, laser or light may already be competing for it. Lay the parts out on the rifle before you commit to a mounting position, because moving a sight after zeroing costs you the zero.

Steel sights need very little care. Keep the hinge free of grit, add a drop of oil occasionally, and check the mounting hardware when you check your optic. Our optics collection carries the matching front sights, mounts and optics that complete a rifle built around offset irons.

A Magpul MBUS PRO AR-15 offset rear sight is cheap insurance and a genuine speed advantage on a scoped rifle. Add one, learn the roll, and you will wonder why you waited. Ships direct to your door, no FFL required.