Setting the Recock
The Evil®OMEN™ships from the factory already tuned, and with regular cleaning and
lubrication should only require pressure regulator adjustments to set the velocity. Every time
you adjust the inline regulator, the recock pressure should also be adjusted. Here is how to
tune from scratch. It assumes you are adjusting to a field limit of 300 fps; if your velocity
limit is lower the numbers must be adjusted accordingly. Every time you adjust velocity using
the inline regulator, you must also adjust the recock pressure the opposite way. Example: If
you increase your inline pressure to turn velocity up, then you will want to turn the recock
pressure down slightly.
STEP 1
Check that the marker is clean and has a thin coat of grease or oil on the hammer o-ring
(part #46). (A working Evil OMEN
™
that stops recocking is usually out of gas, dirty, or
needs lube.)
STEP 2
Reduce recock pressure (to avoid breaking paint during step 3):
To reduce recock pressure use the smallest hex wrench (.050) to turn the recock screw (part
#10) in (clockwise) until it GENTLY bottoms on the valve stem; then back it out 1/4 turn.
STEP 3
Adjust velocity (loading only one paintball at a time is safest):
3a. Adjust regulator to a gas pressure well below normal shooting pressure. (Use a 3/32" hex
wrench to loosen the locking regulator screw as shown in the photo to the right.) Then turn
the adjusting ring clockwise to decrease the line pressure into the marker.
3b. Drop a paintball into the feed tube and chamber it by pulling back the rear block (part
# 33). Fire the marker and note velocity.
3c. Increase gas pressure (in small steps) and repeat 3b until you get a velocity of about
310 fps. (When you add in recocking in Step 4 velocity should fall below 300 fps, but to
be sure you MUST do the final velocity adjustment in Step 5.)
NOTE: As gas pressure is increased, velocity first increases to a maximum and then
decreases. The maximum velocity achievable is increased by turning the red velocity screw
(part # 34) in to increase hammer spring tension. Best marker operation (smoothest shooting
and best efficiency) will occur when the maximum velocity is only about 10-20 fps above your
velocity chrono point. Hence when adjusting gas pressure to get a velocity just below 300 fps,
the ideal maximum velocity is about 310 fps.
STEP 4
Adjust recock pressure to get reliable recocking (do this with air but WITHOUT paintballs).
4a. Fire marker (with no paint!); if it does not recock, turn recock screw out a quarter turn.
Repeat until it recocks consistently.
4b. Turn recock screw out (CCW) 1/8 turn more and fire rapidly a few dozen times to
confirm consistent recocking. This should give enough recock pressure to recock reliably,
but not so much that the bolt cycles too hard and breaks paint.
STEP 5
Adjust marker velocity to a value below the field limit by adjusting regulator pressure.
NOTE: For optimum performance, your Evil OMEN
™
might need to be tuned each time you
play. That means setting the recock pressure as low as possible.
Turn counterclockwise to adjust Recock Pressure up.
Turn the center of the regulator to adjust pressure up or down.
(Make sure you loosen the set screw first.)
+
–
regulator
set screw