Metal Flip Up Front and Rear Rapid Transition Sight Folding Sight Set, Adjustable Machine Sights, Double Aperture Iron Sights, K300 Back Up Scope Fit 20MM Rails Mount, All Black

£28.99 (as of 09/01/2026 05:56 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 K300 metal flip up front and rear sight set is a folding sight option for compatible 20MM rails. It includes a front sight, rear sight and hex tool, with a double aperture design and compact fold away format that suits buyers who want a simple back up sight setup.

*View On Amazon*

SKU: B0DC62ZZB1 Category:

Quick Summary

The K300 metal flip up front and rear sight set is a folding sight option for use on 20MM rails. It is designed as a back up sight set with a double aperture layout, and it includes a front sight, rear sight and hex tool.

Who It Is Best For

This set suits buyers who want a compact sight solution that can be folded away when not needed and mounted on compatible rails. It may appeal to anyone looking for a front and rear sight pair with a simple fitting setup and a black finish.

What To Know Before You Buy

The set is listed for 20MM rails and is also described as compatible with most 21mm Picatinny and Weaver rails, so it is worth checking your selected rail before ordering.

Pros: Folding design helps save space when carrying or storing, and the set includes both front and rear sights plus a hex tool.

Cons: Compatibility should be checked carefully, as the listing refers to both 20MM rails and most 21mm Picatinny and Weaver rails.

Common Buyer Questions

What comes in the set?
The kit includes one front sight, one rear sight and one hex tool.

Is it designed to fold?
Yes, the sights are described as folding and can be flipped up and down.

What rails does it fit?
It is listed for 20MM rails and also described as compatible with most 21mm Picatinny and Weaver rails.

Is it suitable as a back up sight set?
Yes, it is described as a back up scope fit sight set.

Does it have more than one aperture?
Yes, it is described as a double aperture iron sight set.

Key Details

DetailWhat it means in use
Product typeFront and rear folding sight set
Model nameK300
Rail fitListed for 20MM rails and described as compatible with most 21mm Picatinny and Weaver rails
DesignFolding sight design for compact carrying and storage
Aperture styleDouble aperture iron sights
Included items1 front sight, 1 rear sight and 1 hex tool
ColourAll black

Final Buying View

The K300 sight set is a practical option if you want a folding front and rear sight pair for a compatible rail setup. It combines a compact design with a double aperture layout and includes the fittings needed to get started. If you are checking rail compatibility, this is a straightforward sight set to consider.

Brand

HATSEN

Manufacturer

HATSEN

Color

All Black

Size

One Size

Scroll to Top