SHS Piston Head 8 hole Double Oring / piston 8 lubang shs

We have shopped the various type of SHS piston head out there and conducted test. This is the most advanced version with 8 ventilation holes (in opposed to 6), double o-ring (in oppose to one), and ball-bearing. The piston head is constructed out of CNC Aluminum for durability and precision. Features: High Quality CNC Aluminum Double O-ring Design for Excellent Pressure Seal Ball Bearing Prevents Binding 8-holes for higher speed and rate of fire. Anodized Coating Compatibility: For most Standard Tokyo Marui Style Airsoft AEG Gearboxes Material: CNC 6061-T6 Aluminum Manufacturer: Matrix (OEM: PPS / SHS)