Figure 5 Safety burst disk.
All paintball markers must be chronographed regularly. Adjust marker to shoot paintballs at a velocity
that is less than 300 feet per second (fps) and/or that does not exceed the velocity limit set by the
paintball park where the marker is in use.
Chronograph the marker at regular intervals during the day, as well as any time the air source is
refilled or changed, any time the barrel or any part in the marker is changed, and upon request of
any player or game official.
Figure 6.
3
/
16
" allen
wrench is used to
adjust velocity.
VELOCITY ADJUSTMENT
Figure 7. Clockwise
increases velocity.
Counterclockwise
reduces velocity.
Figure 7a. Locking
down SRT or EXT
velocity knob.
W
WA
AR
RN
NIIN
NG
G
!
W
WA
AR
RN
NIIN
NG
G
!
W
WA
AR
RN
NIIN
NG
G
!
A COMPRESSED GAS OR AIR CYLINDER IS A PRESSURE VESSEL. FOLLOW RULES FOR SAFE HANDLING OF
COMPRESSED GAS OR AIR. ALL FILLING OF COMPRESSED GAS OR AIR CYLINDERS, AND ALL REPAIRS TO A
MARKER OR ITS COMPONENTS MUST BE PERFORMED BY QUALIFIED PERSONNEL.
FILLING COMPRESSED
GAS/AIR
An overfill of any compressed gas or air cylinder can cause the safety burst
disk (Figure 5) on the cylinder to burst, or the cylinder itself to rupture.
A cylinder may rupture with extremely dangerous force. Use properly rated
disk only. Inspect the burst disc for a vent hole. If no hole is present contact
a local store or PMI immediately. DO NOT FILL!
A scale must be used for all CO
2
fills to prevent an overfill. A pressure gauge
must be used for all compressed gas or air fills to prevent an overfill.
Fills must be performed by qualified personnel. A cylinder must not be filled
beyond the cylinder’s capacity per the U.S. Department of Transportation. A
cylinder’s rated capacity appears on the cylinder itself.
DO NOT OVERFILL ANY CYLINDER. AN OVERFILL CAN CAUSE THE SAFETY BURST DISK OR THE CYLINDER
ITSELF TO RUPTURE.
HYDROSTATIC TESTING DATE
Many cylinders are required by the U.S. Department of Transportation to be hydro-tested at
periodic intervals, with the interval varying according to cylinder type. The date of the cylinder’s
initial or later testing appears on the cylinder. A cylinder that is out of date for hydrostatic testing
must not be filled or used.
1. Chronograph the marker using standard chronograph procedures and following safety rules. Shooting
velocity will vary based upon many factors, such as paint, weather, and air system.
2. Adjust velocity by using a
3
/
16
" allen wrench to turn the velocity adjuster. See Figure 6. Turn adjuster
clockwise to raise velocity. Turn adjuster counter-clockwise to lower velocity. See Figure 7. Turning the
velocity adjuster changes the amount of tension on the hammer spring. The hammer spring may be
changed for additional velocity adjustment; insert stiffer spring to raise velocity and less stiff spring
to lower velocity (spring tension in order of strongest to weakest: red, blue, white). See next page for
more about springs.
3. The EXT comes standard with the DSR Regulator which can directly affect velocity. Most EXT markers
will shoot 280 fps with the regulator set at 300 p.s.i. Turning the pressure up with a 3/32” allen
key should raise velocity. To turn the pressure up, turn the bottom adjustment screw counterclockwise
(looking at the bottom of the DSR) with a 3/32” allen wrench. See Figure 8.
4. Chronograph the marker after every velocity adjustment.
5. Chronograph the marker at regular intervals during the day, as well as any time the air source is
refilled or changed, any time the barrel or any part in the marker is changed, and upon request of
any player or game official.
9
10
+
–
Figure 8. Increasing
the pressure on the
EXT.
+
COMPRESSED AIR/GAS
–
