Zero Recoil Operating System (ZeRO) is a technological advancement that allows the
traditional Stacked Tube Blow Back (STBB) design to achieve low operating pressure
and providing an unparalleled shooting profile.

The ZeRO System combines several unique and proprietary features that allow a
STBB to operate at 250 PSI thus reducing recoil down to a level never before achieved
in a STBB design.

ZeRO System components include:
Feather Striker System
Low Tension Main Spring
Low tension Valve Spring
ZeRO housing for Valve Timing adjustment per HPA or CO2 use.

The ZeRO System performs best when coupled with an inline regulator.