The CNC Aluminum Piston Head is machined with precise CNC tolerances from Aluminum, Thrust Ball Bearing and 2 O-rings for improvements in stability, durability and overall performance.
The Thrust Ball Bearing help the spring not twisting when compressed.
2 O-rings to make the piston head move more smoothly in the cylinder.
The piston head is designed with grooves and viton o-ring for better air sealing for higher performance.
