User's Manual

®
10
WARNING: Never remove the internal of the marker while the
air tank is attached with the marker.
FOR CO2 OPERATION:
NOTE: Zenith is optimized for use with HPA, in order to
optimize the Zenith for CO2 use, please follow the instructions
below.
1. Insert the 3mm allen wrench into the ZeRO Adjustment Screw
(Z001). Turn clockwise two full revolutions.
2. To optimize the velocity, make sure the rear velocity adjustment
is backed all the way out. Adjust the Inline Regulator (refer to
Regulator Adjustment) until the marker is shooting at 250 feet per
second over a chronograph.
3. To fine-tune the marker velocity follow the direction on page 9
(refer to Velocity Adjustment)
FOR HPA OPERATION:
NOTE: Zenith is optimized for HPA use out of the box. Follow
the instructions below only after you have used the CO2
setting and would like to reconfigure for HPA use.
1. Insert the 3mm allen wrench into the ZeRO Adjustment Screw
(Z001). Turn counter-clockwise two full revolutions.
ZeRO SYSTEM
INSTRUCTION AND ADJUSTMENT