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MagPul MBUS Pro LR Adjustable Rear Sight Back Up Sights MagPul
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MagPul MBUS Pro LR Adjustable Rear Sight

£145.00
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Flexible returns

Magpul MBUS Pro LR Adjustable Rear Sight – MAG527

Features

  • All-Steel Construction: Melonite® QPQ–finished steel body delivers extreme wear and corrosion resistance.
  • Low-Profile Stowed Height: Sits just ~0.49″ above the rail when folded, minimizing snag points.
  • Compact Stowed Length: 2.2″ overall for a minimal footprint.
  • Windage Adjustment: Tool-less low-profile knob provides ~0.5 MOA/click at a 14.5″ sight radius (~0.4 MOA/click at 20″).
  • Elevation Adjustment Wheel: Calibrated for 200–600 m in 50 m increments for rapid range compensation.
  • Dual-Aperture Design: 0.07″ small aperture for precision and 0.19″ large aperture for rapid target acquisition.
  • Positive Detented Lockup: Spring-loaded detents secure the sight in both deployed and stowed positions.
  • Standard AR Height: Deploys to co-witness height with optics on MIL-STD-1913/STANAG 4694 rails.
  • Made in the USA: Precision-machined and assembled under Magpul’s exacting quality standards.

Magpul MBUS Pro LR Adjustable Rear Sight – Technical Specifications

Specification

Details

Model / MPN

MAG527

SKU

MAG527

UPC

873750001340

Mount Interface

MIL-STD-1913 Picatinny / STANAG 4694 rail

Height Above Rail (Stowed)

~0.49″ (12.4 mm)

Length (Stowed)

2.2″ (56 mm)

Weight (w/ hardware)

2.0 oz (57 g)

Windage Adjustment

~0.5 MOA/click @14.5″; ~0.4 MOA/click @20″

Elevation Adjustment

200–600 m in 50 m increments

Small Aperture Diameter

0.07″ (1.8 mm)

Large Aperture Diameter

0.19″ (4.8 mm)

Material

Melonite® QPQ–finished steel

Finish / Color

Hard-coat anodize (Black)

Country of Origin

USA

SEO Keywords

  • Magpul MBUS Pro LR MAG527
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  • 200–600 m elevation backup sight
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Frequently asked questions

What is the return policy?

Our goal is for every customer to be totally satisfied with their purchase. If this isn’t the case, let us know and we’ll do our best to work with you to make it right. 14 day return if you are not happy. Things must be unopened and in original packaging, unless it is faulty.

Are any purchases final sale?

No, you can cancel at anytime and will receive a full refund. We will always work with you. Email: info@xtremetactical.co.uk

When will I get my order?

Shipping & Delivery

  • We work quickly to process and ship your order as soon as possible.
  • Once your order has shipped, you’ll receive an email with full tracking details.

Delivery Times

  • Standard delivery from our USA suppliers: 7–10 working days (usually within a week)
  • UK Stock Collection items ship within 24 hours.

Stock & Sourcing

  • Due to limited demand, we do not hold inventory in the UK. All products ship direct from our USA suppliers to us then we ship to you so you don’t pay any imports fees.

Insurance & Guarantees

  • Orders over £300: Free Royal Mail Special Delivery (Guaranteed Next Day, Fully Insured)
  • Orders under £300: Royal Mail Tracked service for £3.99
Where are your products manufactured?

Our products are manufactured both in USA and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

How much does shipping cost?

Shipping & Insurance

Orders over £300 ship free via Royal Mail Special Delivery, guaranteed next day and fully insured.

Orders under £300 ship via Royal Mail Tracked for a flat fee of £3.99.

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