The Legend is relatively simple in operation, which allows it to be built with
fairly few parts. Moreover the implementation of its design uses a minimal
number of moving seals, ultimately reducing risk of component failure. The
heart of the marker is a basic poppet valve, similar in structure to those found
in pump markers tracing their way back to the PGP, or blowbacks semis like
the Illustrator and Spyder. The Legend is a true electropneumatic marker. It
uses uses air pressure to drive a ram against the poppet valve, while
simultaneously closing the breech with a linked bolt.
Rather than using blowback gas, or a two-directional ram system to return
the ram and bolt to their resting positions at the rear of the marker, the
Legend has a mainspring between the ram and valve. It is compressed during
firing, and expands back out at rest.
The Legend's firing cycle begins with the marker at rest, the bolt in an open
position. In this state, compressed gas is being fed into the front block of the
Legend from its regulator and from there to the front of the lower of the
receiver's two tubes.
The gas stops at the valve. Here, the valve spring holds the cup-seal against
A small brass hose barb and hose also directs gas from the front block to the
Legend's solenoid valve which is mounted vertically inside the grip frame. It is
notable that the front-block design would make use of an LPR a fairly simple
matter of building a custom front-block – though it may not provide
A shorter hose runs from the solenoid valve to a quick exhaust valve on the
rear bottom of the receiver. From here, there is an open path to the ram
When the Legend fires, the solenoid valve delivers compressed gas to its
output hose, which travels up to the ram housing. The gas pushes the ram
shaft forward out of the ram housing. As the hammer moves forward it
simultaneously closes the bolt, as the two parts are connected by the link
pin. Sitting between the hammer and valve is the Legend's mainspring. As the
hammer moves forward this spring is compressed.
When the hammer reaches the front of its stroke the bolt has closed, sealing
against an o-ring in the breech. At this point the hammer presses forward on
the valve pin, which pushes the cup seal back away from the body of the
valve. This opens the valve.
With the valve open, compressed gas now has a direct route to escape from
the legend. It flows up from the valve chamber, around the cup seal and
through the valve body, then up through a connecting passage in to the
bolt's gas port. It passes through an angled passage in the bolt, and then out
the bolt face where only one thing blocks its path to the atmosphere and
pressure equalization – the paintball. The gas expands, pushing the paintball
ahead of it and out the barrel.
When the Legend's circuit board stops sending power to its solenoid valve,
the valve resets, and stops sending gas pressure to the ram assembly.
Without force behind it to counteract the mainspring, the hammer and bolt
quickly return to their rear position, forcing air out of the ram, and allowing
the valve to close.