- -Heat-treated high carbon steel
- -TOUGHEST PISTON BODY
- -14-piston-teeth design reduces teeth loss during high speed shooting
- -Reduces BOX damage rate
- -LIGHTWEIGHT
- -Single-sided three-section design reduces BOX friction and resistance.
- SLONG tested :M170 at 30 pellets per second, after 10000 shots, the piston still intact
- MADE IN TAIWAN