FIRECLUB 45 Degree Rapid Transition BUIS Backup Iron Sight for AR15 Front and Rear

£23.99 (as of 10/03/2026 23:00 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The FIRECLUB 45 Degree Rapid Transition BUIS Backup Iron Sight is a front and rear AR15 sight set with flip up, spring load deployment. It is listed as a backup iron sight for red dot setups and compatible with most standard Weaver and Picatinny rail systems. A practical choice if you want a compact angled sight option for quick use.

SKU: B09DSP8JBX Category:

Quick Summary

The FIRECLUB 45 Degree Rapid Transition BUIS Backup Iron Sight is a front and rear sight set for AR15 use, designed for quick deployment with a flip up, spring load push button design. It is described as a backup iron sight for red dot setups and is listed as compatible with most standard Weaver and Picatinny rail systems.

Who It Is Best For

This is suited to buyers looking for a backup sight option for an AR15 and a rapid transition setup. It will appeal to those who want a compact front and rear sight pair with a 45 degree angled layout and compatibility with common rail systems.

What To Know Before You Buy

The sight set is listed with an aluminum alloy build and a black matte finish. It uses a spring load push button with flip up design, and the angled layout is described as suitable for both left and right handers.

Pros: Compact backup sight set with quick flip up deployment and common rail compatibility.

Cons: Check the selected rail setup and space available on your rifle before ordering.

Common Buyer Questions

Is this a complete front and rear sight set?
Yes, it is described as a front and rear BUIS set.

What type of rail does it fit?
It is listed as compatible with most standard Weaver and Picatinny rail systems.

Is it made for quick use?
Yes, the flip up design and spring load push button are intended for quick deployment.

Can left and right handed users use it?
Yes, it is described as a 45 degree angled sight for both left and right handers.

What is it used for?
It is described as a backup iron sight for red dot setups.

Key Details

DetailWhat it means in use
BrandFIRECLUB
Product typeAR15 front and rear flip up BUIS backup iron sight
Angle45 degree angled layout
DeploymentSpring load push button with flip up design
FinishBlack matte finish
MaterialAluminum alloy
CompatibilityCompatible with most standard Weaver and Picatinny rail systems
Listed useBackup iron sight for red dot setups

Final Buying View

The FIRECLUB 45 Degree Rapid Transition BUIS Backup Iron Sight is a straightforward choice if you want a front and rear backup sight set for an AR15 with quick flip up deployment. It is compact, angled, and listed for common rail systems, which makes it a practical option for a backup sight setup. If the rail fit and layout suit your rifle, it is worth a close look.

Brand

FIRECLUB

Manufacturer

FIRECLUB

Binding

Apparel

Product Group

Sports

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