Features:

• Reinforced with lightweight aluminum.
• O ring for better air seal.
  
  Compatibility:
• Tokyo Marui M&P9L GBB Pistol.
  
  About:
  The Nine Ball Dyna piston head for Tokyo Marui GBB M&P9L is an improvement over the stock one that comes with the pistol. Most notably, this particular piston head is reinforced as its made from lightweight aluminum and it improves air sealing with the included O-ring.
  
  Installation can be tricky for those unfamiliar, a technician is recommended for assistance.
  
  Includes:
• x1 Nine Ball Dyna Piston Head for Tokyo Marui GBB M&P9L