Features:
A diamond pattern wrapping around a cylinder design makes tappet go more smoothly.
Special cut in the front makes the tappet get back more when operation.
Increase the stroke to have a good performance.
- Modify Cylinder for M16 - TYPE 0 (GB013601)(4713072160683)
- Modify Cylinder for M4 - TYPE 1 (GB013701)(4713072160690)