Pirate Arms M4 Aluminium Outer Barrel

The Pirate Arms M4 Aluminum Outer Barrel fits basically all M4 model airsoft devices and serves as a replacement for the original barrel.

This barrel comes in two parts, the long part can be used for CQB type replicas and the extra extender that comes with it adapts it to a standard M4 model. 
The length of the long barrel is 26.5cm and the short barrel 13cm.