Kingpin "Ferrum" Liner
- Weight is 7.75 oz
- Punchy liner ideal for 7 to 14 Liners
- Runs optimally at 5.5 to 7.5 volts
- Medium-Long Stroke
- Hand-built and tuned in-house
- Tune-ups and springs guaranteed for life*
*Machine must be unmodified with original parts