Specna Arms CORE Ver2 gearbox, with quick spring change

Specna Arms CORE™ V2 Gearbox Shells. This highly durable gearbox is designed specifically for Specna Arms CORE™ series electric guns equipped with Ver2 gearboxes. The gearbox is equipped with the ESA™ Quick Spring Change System. Reinforcement filings are ready at the front end of the gearbox. The reinforcement filings distribute the impact force of the piston more evenly across the entire front end area, thus improving the durability of the gearbox. Mounting screws are supplied with the gearbox. Bearings are not included.