User's Manual

Air Source Installation
Once the F4 is properly cocked with the safety on you can pres-
surize it with C02, regulated compressed air or nitrogen. Only
after you understand how to handle it safely should you attempt to
pressurize your F4.
Proper Seating of Air Source
The bottle O-ring provides the seal, so just tighten the bottle until
it is snug. You should hear a brief hiss as the bottle valve opens
during the last 1/2 turn. Over tightening can damage the F4. If a
leak persists, replace the bottle O-ring.
CAUTION
Be safe! Depressurize the F4 (remove the bottle) unless
you are about to use it. Do not unscrew the bottle from
the bottle valve; you may turn the bottle into a rocket!
OPERATION
Before pressurizing, check that the F4 is cocked but not loaded. If
not cocked, air may leak until the cup seal seats. Also, if not
cocked the F4 can fire as it is being pressurized.
Cocking
To cock the F4, pull the cocking knob rearward until it latches. Be
careful, if you let go before it latches, the F4 can fire. DO NOT
DRY FIRE THE F4. (To pull the trigger, the safety must be dis-
engaged.)