Castellan Airsoft

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Our exclusive range of Castellan airsoft upgrade parts includes top-quality switch rails and rail panels compatible with Keymod and M-Lok rail systems on your AEG. Shop our selection today.

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Upgrade Your Weapon’s Attachments With Castellan Rails

We have a great selection of Castellan airsoft switch rails and rail panels to upgrade your weapon with ease. 

Being able to quickly and easily switch between gun attachments and accessories can give you a real advantage during gameplay, so make sure you have the best on the battlefield with Castellan. With different lengths, colours, and style options available, you can find the perfect fit for your weapon.

The Best Castellan Switch Rails & Rail Panels

Made using high-quality polymer, these Castellan switch rails allow you to attach accessories like flashlights, lasers and grips to your airsoft gun with a handy M-Lok attachment point, while our rail panels provide a comfortable grip for improved handling and control. 

We stock the M-Lok Switch Rail in 2 different lengths – 13” and 12”. Both are compatible with AEGs. This switch rail is lightweight, so it won’t add too much bulk to your weapon, and you’ll still have great manoeuvrability. 

Our Castellan 5 Slot URX Rail Panel fits standard Keymod rail systems for the fitting of a 20mm Picatinny. We also stock the 9 Slot M-Lok Rail Panel, which is compatible with M-Lok rail systems, also for fitting a 20mm Picatinny rail. Both of these are also very lightweight and make it super convenient to customise your weapon’s attachments.

Shop the range today and order online to enjoy free shipping on orders over £100 and same-day dispatch on working days.

Can’t find what you’re looking for? Send us an email or give us a call detailing the gun part you’re after, and we can help you out.


The Castellan switch rails in our range are compatible with AEGs.

This somewhat depends on the rail system you have or plan to use. The 5-slot URX Rail Panel is compatible with Keymod rail systems, and the 9-slot M-Lok Rail Panel is compatible with an M-Lok system – you should pick whichever is compatible with your gun. If you’re not sure which type of rail system you have, contact us, and we can help you out.

Our Castellan rails are compatible with both Keymod and M-Lok rail systems for fitting 20mm Picatinny rails.

You can attach laser accessories, optics, grips, and flashlights to Castellan rails.