Gearbox V2 CORE Specna Arms

Specna Arms is a well-known brand in the airsoft world offering quality replicas, internal parts and accessories subject to specific specifications.

Here we find the original gearbox CORE shell fitted to airsoft replicas M4 / AR15 AEG Specna Arms from the same range.

Supplied with 8mm bearings, it is also adapted to the ESA quick spring change.