User's Manual

TUNING YOUR GUN
Regular tuning is essential. But don’t waste time trying to tune a
gun which is:
• Dirty or poorly lubed
• Has a damaged striker O-ring
• Low on air
• Has the wrong O-rings installed
Check velocity to ensure it is not too high. It was set to 260 fps
at the factory, but it will change over time, and with temperature.
Ball Retaining Spring Adjustment
With the spring held in by the plate, and the gun cocked, the
upward bow of the spring should just make point A contact the
gun frame.
Tight: Too much bow causes drag and won’t let the ball roll
freely into the chamber - bend spring outward at point A.
Loose: Too little bow lets the ball slip forward so a second ball
can partially enter - bend spring inward at point A
BOLT
BOLT
BOLT
Feed
Tube
Feed
Tube
Feed
Tube
Ball Retaining
Spring
Ball Retaining
Spring
Ball Retaining
Spring
A
Correct Adjustment - A single
ball will feed into the chamber
forward of the bolt
Spring Too Tight - Ball will not
feed all the way in and will be
chopped by the bolt
Spring Too Loose - A second
ball can enter the chamber and
be chopped by the bolt
Velocity Adjustment Procedures
Before adjusting velocity make sure the striker plug is screwed in
all the way. Your gun must be properly lubricated and free of all
dirt and debris.
Insert 3/16 hex wrench (provided) into the velocity adjustment
screw located in the striker plug as shown in the diagram below.
Turn clockwise to increase velocity. Turn counter clockwise to
decrease velocity. Check your velocity on a reliable chronograph
every quarter turn until desired velocity is reached.
Note: If the velocity screw is loose, replace the anti-drift pin (provided).
CAUTION
Do not adjust velocity with the striker plug
partially unscrewed. If it is later screwed back
in, the velocity may be dangerously high.