- Brand: TOP MAX
- color: blue
- made for: Replicas z gearboxem V2, Replicas z gearboxem V3
- weight [g]: 3
The product does not constitute ballistic protection and has no other protective properties. It is not intended for use in protective purposes, including during tactical/war/ASG games.
The use of the product for ballistic protection and/or for other protective purposes, including the use during tactical/war/ASG games, is the use of the product contrary to its intended use, in which case the buyer does so solely at his own risk.
The vendor is not liable for damage to the product, that might result from the use of the product contrary to its intended purpose, this also applies to all possible health consequences (bodily harm) for the user (buyer) or damage to property. Moreover, a misuse of the product will void the warranty on the product.
The vendor is liable to the buyer under the warranty for product defects (in the event of such defects) only if the buyer/user uses the product for its intended purpose, i.e. for purposes other than protective purposes, including the use during tactical/war/ASG games.
The lack of any protective properties of the product is a feature, not a product defect, and therefore it does not constitute a physical defect of the product within the meaning of the Polish Civil Code.
TopMax BluePower DELRIN CNC Piston Head Blue
The CNC-machined BluePower DELRIN piston head by TopMax, designed and manufactured in Italy. The lightweight, reliable, and durable construction is suitable for all types of configurations.
The front of the piston head is designed to reduce stress resulting from impact even at higher rates of fire (ROF). The BluePower piston head does not have a double O-ring for sealing/stabilizing but features a small recess that reduces the contact surface with the cylinder interior to minimize friction. The insert for attaching the head to the piston is slightly shorter to allow compatibility with any piston available on the market. Additionally, the piston head has eight axial and radial ventilation holes. The size and placement of the radial holes are different from the RedPower head to achieve greater aggression during the o-ring expansion while maintaining stability, consistency, and accuracy of shots.
The BluePower piston head is designed to provide a faster compression phase, shorter opening time, and ensure that the air volume in the cylinder is fully compressed almost immediately. It can be used in any configuration, from low to high ROF setups. Still, it is recommended for use in high ROF configurations with short/super short inner barrels to take advantage of early compression resulting from hole placement.
Stress tests
on the piston head were conducted using higher-power springs, ensuring
reliability and efficiency even in more advanced configurations. For maximum
performance, we recommend pairing the BluePower piston head with a TopMax
piston and cylinder head.






