Balystik CNC aluminum bearing Piston head

This piston head has 8 ports on the front to push out the o-ring as it moves forwards, this ensures that all of the air in the cylinder is being pushed out to propel the BB. The ball bearings help reduce tension created by the spring compressing and expanding, this combined with a ball bearing spring guide is the optimal set up to keep your spring in good shape. Each piston head is made of CNC aluminium and it is also anodized for smooth surface finish. This is the most advanced version with 11.8gr only, 8 ventilation holes for higher speed and rate of fire, ball-bearing and excellent seal.