Heligun EX17.pdf - Forgotten Weapons

HTC-AD 66-21
transfer to the cylinder, as described under Ramming and Ejection. The
feeder thus has only three moving parts --the drive shaft and two sprockets.
Stopping
When the trigger is released, the firing cam rotates to a position where
the hammer tang cannot strike it. As the gun comes into battery, the
round in the bottom chamber is not fired, stopping the gun. Two rounds
are left in the cylinder, one in line with each barrel ready to start the next
burst.
Clearing
If it is desired to clear the weapon, the clearing crank is turned 180
degrees. The crank pulls the drive shaft spline out of engagement and
displaces the ram gas transfer ports. The gun is then fired or charged
to clear it without ramming additional rounds into the cylinder. The gun
then can be rearmed by returning the clearing crank to the original
position and charging.
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