Description
Made with aircraft grade aluminum, the Modify Bore-Up Piston Head provides maximum compression for enhanced FPS performance and durability.
Features:
- High strength aircraft grade aluminum construction
- Aluminum body is extremely durable, yet lightweight
- Revolutionary design for enhanced compression performance
- Thrust bearing reduces spring tension by letting it spin
- Decreases wear and tear on internal parts
- Ported piston head allows o-ring to expand for maximum air compression