|  G&P Reinforced Piston Set (A) (for 230mm Inner Barrel) Description :
- For below 230mm Inner barrel
- For High R.O.F. & Marui Ver.2/3/6/7 Gearbox
- Piston & Piston Head Material: Japan PA
- Steel Teeth Material: Hard HRC 38゚- 40゚ Included :
- Steel Sector Gear
- Reinforced Piston
- Reinforced Piston Head 
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