High quality bearing piston head. It is made of plastic. It is perfect for power tune ups of the replica. The materials used in the production guaranty a long and trouble free operation of the whole system. The application of the bearings prevents the spring from clustering and, what is followed by it, allows to keep a stable muzzle velocity for a longer period of use.The application of the Super O-ring type sealing ensures proper sealing and durability of the whole system.
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