GBB Outer Barrels

Sleek look and stable operation – Outer Barrels for GBB replicas

A GBB outer barrel is more than just a cosmetic part. It ensures the correct alignment of your inner barrel, adds weight where needed and gives your pistol or rifle a robust, realistic look. Whether you're looking for a threaded barrel for a tracer unit or a CNC-milled version in stylish black or titanium grey, Airsoft Legends has you covered.

Why choose an upgraded outer barrel for GBB?

The standard outer barrels in many GBB replicas are made of cast aluminium or plastic. Although functional, they often lack the durability, precision and appearance of aftermarket upgrades. By choosing a precision-machined barrel, you not only improve the fit, but also the reliability of your replica during intensive use.

What can you find in this category?

• GBB outer barrels for pistols – compatible with brands such as Tokyo Marui
• Threaded barrels – with 11mm or 14mm CW/CCW thread for accessories
• CNC-milled models – for maximum strength and a tight fit
• Colour options such as black, silver, gold or titanium grey
• Materials such as steel, aluminium or anodised metal

Who is it suitable for?

• Airsofters who want to give their replica a custom look
• Players who want to mount accessories such as silencers or tracer units
• Technical players who demand maximum stability and durability
• Anyone who wants to upgrade their standard barrel with a better fit and finish

Frequently asked questions about GBB outer barrels

What is the difference between a standard and a CNC outer barrel?

A CNC-milled outer barrel has higher precision and strength than cast variants, keeping your inner barrel better aligned and less prone to play.

Can I mount accessories on my outer barrel?

Yes, with a threaded outer barrel (usually 11mm or 14mm CW/CCW) you can easily mount a tracer unit, silencer or flash hider.

Are outer barrels brand-specific?

Yes, often. Always check that your outer barrel is compatible with the brand and model of your GBB replica.

Does the choice of material affect performance?

Yes, steel and aluminium are more durable and rigid than plastic, which ensures a more stable attachment and a more robust feel.

Combine your GBB outer barrel with a GBB Inner Barrel upgrade for maximum precision, or add a GBB Hopup Chamber & Bucking for optimal BB stability. If you want a custom front end, you can also check out our Tracer Units for a complete look.

Enhance the look and performance of your replica – choose an outer barrel that delivers.