Features:

• Lightweight and durable polycarbonate reduces weight and improves reliability of the piston head
• High grade rubber O-ring provides superior air seal ensuring reliable performance
• Porting expands the O-ring providing a seal that fits most popular AEG cylinders
• Aluminum stalk and spacers keeps weight down without sacrificing durability
• Aluminum and brass washers and spacers included
• Equidistant porting ensures reliable cylinder pressurization