Magpul MBUS Gen2 - Rear

Name: Magpul MBUS Gen2 - Rear
Brand: Magpul

Magpul · Sights & Optics

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Best price

$55.05at Rainier Arms

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Where to buy

Store	Price	Availability	Buy	Add to build
Rainier Arms Best price	$55.05not checked recently	Check store	Buy at Rainier Arms
Magpul	$57.95checked Oct 1, 2026	Check store	Buy at Magpul

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

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Dashed line = out of stock. Tracking since Sep 30, 2026.

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Store	Latest	Lowest	Highest
Magpul	$57.95	$57.95	$57.95

Since Sep 30, 2026.

About this part

The Magpul MBUS Gen2 - Rear is an iron sight from Magpul. It's sold by 2 stores, from $55.05 to $57.95.

Specifications

Manufacturer: Magpul
Type: Iron Sights
Magnification class: 1x (non-magnified)

From the manufacturer

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. FEATURES Impact resistant polymer construction provides light weight and resists operational abuseSpring-loaded flip up sight easily activated from either side or by pressing the topDetent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 ironsProtective wings shield the dual, same plane flip aperturesSight can still be folded with either large or small aperture in positionDetent knob easily and positively adjusts windage SPECIFICATIONS MBUS – Rear Weight, w/ hardware: 1.3 oz.Height above rail, stowed: ~0.51 in.Center of aperture to top of rail: 1.42 in.Length, stowed: 2.6 in.Length, deployed: 1.5 in. WINDAGE ADJUSTMENT ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius~0.5 MOA (0.547"/100m) per click with a 20" sight radius