SRC Brass Cylinder Head for Version 2 / M4 Series Gear Box.
Made from high quality Stainless Steel  . Light Weight and durable.
Designed to fit the Ver. 2 gearbox.
Compatible with most major brands of AEG .
Cylinder head enhances airflow through the airsoft AEG gearbox.
With pad on the button.
O-ring for better air sealing.
It keeps the nozzle stroking at the exact center of the cylinder.
Also stabilizes the loading system.
Upgrading AEG require necessary skill and technique to dissemble the gearbox, consult expertise if needed.
Weight - 23g