SIG-551, 552 Enhanced Cylinder Set
Product Code:：GC-01-06／GC-02-06／GC-03-06／GC-04-06
．GC-01-06 (Polycarbonate Piston Head)
．GC-02-06 (Aluminum Ventilation Piston Head)
．GC-03-06 (POM Ventilation Piston Head)
．GC-04-06 (Aluminum Mushroom-Type Piston)
．GC-02-06 (Aluminum Ventilation Piston Head)
．GC-03-06 (POM Ventilation Piston Head)
．GC-04-06 (Aluminum Mushroom-Type Piston)
Cylinder Set
- Air Seal Nozzle GB-02-06
- Cylinder GB-01-03C
- Aluminum Cylinder Head for Ver.3 GB-01-06
- GC-01-06 (Polycarbonate Piston Head GB-01-09)
GC-02-06 (Aluminum Ventilation Piston Head GB-01-10A)GC-03-06 (POM Ventilation Piston Head GB-01-10B)GC-04-06 (Aluminum Mushroom-Type Piston GB-01-48)