One of the lightest, fastest and most efficient bolt system's available.
Made of POM
Comes with a two-o-ring sealing valve pin to make your marker much more efficient
In combination with the lightweight Nano bolt (10 grams) it will eliminate the kick of your gun
The interactive valve spring system guarantees an optimal performance of airflow into the firechamber
A maximum amount of air supply is provided during high cycling (fast shooting) periods.
During low cycling periods, the system uses only as much air as is needed to ensure the wanted and pre-adjusted velocity of the paintball
The Orange Paintball Orange Ion NANO Bolt Xtreme Upgrade Kit is newer, so it should be commonly available, both new and used.