GOG eXTCy Series User manual

eXTCyTM
Operation and adjustment instructions

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QUICK START
01 02 03
Unpack the eXTCyTM and its barrel. Screw the barrel into the front of
the marker, hand tight. Take care not to strip the barrel threads or over-
tighten.
Put the supplied barrel
blocker over the end of the
barrel, securing its cord as far
back on the eXTCyTM body as
possible, and cinching it tight.
Fill the loader with paintballs. If it is a powered loader, turn it on. While wearing ASTM compliant paintball goggles, in an area where all bystanders are protected, remove the barrel
blocker and re over a chronograph to measure the velocity. Using a 5/32-inch allen wrench on the adjuster in the bottom of the vertical regulator, turn clockwise to increase the
velocity/pressure, and counter-clockwise to decrease. Take three or four shots after every adjustment to allow the gas pressure inside the eXTCyTM to stabilize. Adjust until the marker
is ring consistently within the limits for the eld where you are playing (for safety reasons, never adjust the eXTCyTM to re at greater than 300 feet per second). Depending on what
modes of re are allowed at the eld where you are playing (semi-automatic, rebound, etc.) you may need to adjust the eXTCyTM’s ring mode. See the Electronic Adjustment section
for more information.
Fit a paintball loader into the feedneck
of the eXTCyTM. Use a 7/64-inch allen
wrench to lock the loader in place.
Powered force-feed loaders are
recommended, as the eXTCyTM has
little recoil, and can easily outpace an
unpowered or agitating loader.
Gently gas up the eXTCyTM by
slowly turning on the air system
(if HPA system has its own on/
off valve) or turning the bottom-
line ASA knob clockwise.
A gentle rise in pressure is
important, as a sudden blast
may reduce the service life
of the eXTCy®’s internal
components.
Turn on the eXTCyTM by
pressing the power button
momentarily. If the eXTCyTM
does not start, see the battery
section of this manual.
Although the power button
serves as the eXTCyTM’s safety
switch to prevent accidental
ring, it should never be relied
upon in place of a barrel blocker
and proper eye protection.
04 05 06
BARREL BARREL BLOCKER FILL TANK
LOADER TURN ON GAS TURN ON THE eXTCyTM
ADJUST VELOCITY
Have your compressed air
(HPA) or CO2 tank lled by
a person who is properly
trained to do so. If using an
HPA system with an on/off
valve, make sure it is in the
OFF position. If using a CO2
tank or screw-in style preset
HPA system, ll it while it is
removed from the marker.
07
00

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Quick Start
Table of Contents and Safety Warnings
Getting Familiar
Barrel Blocker / Hopper
Gasses
Battery
Paint / Velocity
VisionTM Operation
Electronic Adjustment
Trigger Adjustment
Unloading / De-Gassing
Field Stripping
VisionTM / Detent Cleaning
Advanced Maintenance
GripFrame / Body Separation
Circuit Board Removal
Breech Removal
Vertical Regulator
Troubleshooting / Warranty
Parts Diagrams
00
01
02
03
04
06
07
08
09
13
14
15
16
17
18
19
20
22
25
• THE eXTCyTM IS NOT A TOY.
• MISUSE OF THE eXTCyTM MAY RESULT IN SERIOUS
INJURY OR DEATH.
• EYE PROTECTION DESIGNED FOR PAINTBALL USE
MUST BE WORN BY THE USER AND ANY PERSON
WITHIN RANGE OF THE eXTCyTM.
• GOG PAINTBALL® RECOMMENDS THAT T H E
eXTCyTM ONLY BE SOLD TO PERSONS 18 AND
OLDER.
• THOROUGHLY READ THE eXTCyTM OPERATION
AND INSTRUCTION MANUAL BEFORE OPERATING.
• TREAT EVERY PAINTBALL MARKER AS IF IT WERE
LOADED.
• NEVER LOOK DOWN THE BARREL OF A PAINTBALL
MARKER.
• KEEP YOUR FINGER OFF THE TRIGGER UNTIL
READY TO SHOOT. NEVER POINT THE eXTCyTM AT
ANYTHING YOU DON’T INTEND TO SHOOT.
• KEEP THE eXTCyTM ON SAFE (POWER OFF) UNTIL
READY TO SHOOT (SEE QUICK START).
• KEEP THE BARREL BLOCKING DEVICE ON THE
eXTCyTM’S MUZZLE WHEN NOT SHOOTING (SEE
BARREL BLOCKER SECTION).
• ALWAYS REMOVE PAINTBALLS AND DE-GAS THE
eXTCyTM BEFORE DISASSEMBLY (SEE DE-GASSING
SECTION).
• STORE AND TRANSPORT THE eXTCyTM UNLOADED
AND DEGASSED IN A SECURE PLACE.
• FOLLOW ALL MANUFACTURER’S WARNINGS
AND INSTRUCTIONS FOR PROPELLANT SOURCE
HANDLING, STORAGE AND FILLING.
• DO NOT SHOOT FRAGILE OBJECTS SUCH AS
WINDOWS.
• ALWAYS MEASURE THE VELOCITY OF PAINTBALLS
FIRED BY THE eXTCyTM BEFORE USE, AND NEVER
ADJUST TO FIRE ABOVE 300FPS (91.44M/S).
TABLE OF CONTENTS
01

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The eXTCyTM has been designed with
simplicity in mind so that you can
concentrate on your game instead of your
marker. It has only one major moving part in
its valve system, with a minimal number of
seals. This DOES NOT mean that you should
neglect your eXTCyTM. If you take care of
it off the eld, your eXTCyTM will take care
of you on the eld. For best performance,
clean and grease your eXTCyTM frequently.
Many players disassemble and clean their
eXTCyTM after every day of use. While this
may seem a bit extreme, being vigilant in the
upkeep of your eXTCyTM will extend its useful
life considerably, and catch any problems
when there is time to correct them before
the next game. Playing in the rain will not
damage your eXTCyTM. In fact, the eXTCyTM.
has been tested and proven to function
underwater. However, long-term exposure
to moisture can cause rust damage to
some of the eXTCyTM’s screws, so if your
eXTCyTM should become waterlogged,
remove the barrel, stock, eye covers and
rubber grips and allow it to dry out, then
follow the disassembly instructions for full
cleaning. Clean out mud and paint with
a damp cloth and alcohol. Lubricate the
eXTCyTM ONLY with GR33SETM pneumatic
grease. Use fresh, high quality paintballs for
best performance.
REQUIRED ITEMS FOR MAINTENANCE
STATISTICS MAINTENANCE
WEIGHT:
OPERATING PRESSURE:
POWER SOURCE:
PROPELLANT:
RATE OF FIRE:
OPERATION:
MODES OF FIRE:
ANTI CHOP SYSTEM:
BARREL THREAD:
LUBRICANT:
1.85 lb
160 psi
9-volt Alkaline Battery
CO2 or Nitrogen/Compressed air
Uncapped Semi-Automatic - up to 20bps ramping / auto
Low pressure electropneumatic
12 modes incl: Semi, PSP, NPPL and Millennium
VisionTM Break-Beam eyes
GOG®
For proper and consistent operation, the eXTCyTM should
only be lubricated with GR33SETM lubricating grease.
• 0.050-inch Allen Wrench (included) Trigger Adjustment /
VisionTM Eye Covers
• 5/64-inch Allen Wrench (included) - Battery Change
• 7/64-inch Allen Wrench (included)- Clamping Feedneck
• 1/8-inch Allen Wrench (included) - Stock/Backplate, Trigger
Adjustment, ASA, Grip, Breech and Circuit Board Screws
• 5/32-inch Allen Wrench (included) - Velocity Adjustment
• 5/16-inch Allen Wrench (included) - Bolt Sleeve
• Snap-Ring Pliers (purchase seperately) - Regulator
Disassembly (Advanced Maintenance)
• GR33SETM (purchase seperately) - Paintball Marker
Lubricant
GETTING FAMILIAR PLEASE READ CAREFULLY
02
REQUIRED ITEMS FOR USE
• 5/32-inch Allen Wrench (included) - Velocity Adjustment
• Chronograph (provided for use at commercial paintball
eld) - Velocity Adjustment
• Barrel Blocker (included)
• CO2 or HPA tank (purchase seperately)
• ASTM Compliant Paintball Goggles with Mask
(purchase seperately)
• 68 Caliber Paintballs
• Paintball Hopper/Loader (purchase seperately)
• 9-Volt Alkaline Battery

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FIG. 1
FIG. 2
BARREL BLOCKER IN USE
USE HIGH PERFORMANCE LOADER
The Barrel Blocking Device is a critical piece of paintball safety equipment - nearly as important as
paintball goggles. The Barrel Blocker serves to protect against accidental discharge of a paintball by
catching it before it can cause harm. A Barrel Blocker is included with the eXTCyTM and must be used
every time it is handled in an area where people or property are not properly protected by paintball
goggles or paintball eld netting. To use the Barrel Blocker simply slip it over the end of the barrel
and stretch its cord back over the back of the eXTCyTM or the rearmost part over which it can be
securely looped. Use the strap’s adjuster to cinch the strap tight, so that the Barrel Blocker can provide
protection against accidental discharge of a paintball.
The Barrel Blocker should only be removed when the eXTCyTM is on a “live” paintball eld and all
persons involved are wearing proper paintball protection.
The eXTCyTM is a high performance tournament grade paintball marker. Its low-force bolt and VisionTM
anti-chop system will prevent paintballs from being chopped if the hopper is not able to load paintballs
as fast as the eXTCyTM is being red. If you want to realize the eXTCyTM’s maximum repower potential,
you will need to use a high performance loader. High performance loaders, especially those which
provide force-feeding, will yield the best results with the eXTCyTM.
The eXTCyTM is equipped with a clamping feedneck that allows it to adapt to the small size differences
in hopper neck sizes, yet lock or release quickly. Using a 7/64-inch allen wrench, loosen the clamping
feedneck before installing a hopper.
BARREL BLOCKER
HOPPER
BARREL BLOCKER/HOPPER PLEASE READ CAREFULLY
03

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NEVER PUT OIL IN A COMPRESSED AIR REGULATOR OR
TANK - ONLY APPLY MANUFACTURER RECOMMENDED
LUBRICANTS.
COMPRESSED AIR
The eXTCyTM is a low-pressure paintgun. It operates at approximately 160 psi, which means it is capable of
functioning well with either high-pressure compressed air or CO2as a power source. Proper set up of your
gas system will help you obtain the best possible performance from your eXTCyTM.
Whether using compressed air or CO2it is important that the eXTCyTM is not exposed to sudden “pops”
of pressure. Always turn-on or screw-in a compressed air system or CO2slowly, so that the valve opens
slowly and the gas pressure inside the marker is raised smoothly. Be gentle to the internals of your
eXTCyTM and they will reward you with a long service life.
High Pressure Air systems (HPA) are the preferred power source used in paintball and with the eXTCyTM
because they are unaffected by temperature uctuations and do not have the potential for liquid
problems. HPA systems consist of a tank and a regulator, and are typically rated to store air or nitrogen
at pressures of 3,000 or 4,500 psi. Although pure nitrogen is almost never used in paintball, many players
call compressed air “nitro” as air is made up of more than 70% nitrogen, allowing the two gasses to be
used interchangeably in paintball equipment.
The eXTCyTM is congured for use with screw-in style HPA systems. Although HPA systems pre-set to
deliver approximatly 400 psi (low output) will work with the eXTCyTM, 800 psi (high output) systems are
preferred, to reduce the risk of gas starvation under rapid re.
Never use oil or any petroleum based cleaner or lubricant in a compressed air regulator or tank. Exposure to
pressurized air increases oil’s ammability and can cause a serious safety hazard. Only use manufacturer
recommended lubricants with compressed air systems, and follow the manufacturer’s maintenance and
operation instructions explicitly.
If you are using your eXTCyTM with an adjustable output compressed air system, it should be set to deliver
about 800 psi. The eXTCyTM’s vertical regulator can accommodate a wide range of input pressures, so
exact adjustment of the air system is not critical.
FIG. 3 HPA TANK BEING FILLED
GASES
NOTICE
Due to shipping restrictions, CO2 and HPA tanks are sold empty. They must be lled before they can be
used. Most paintball shops and elds are equipped to ll HPA tanks. Paintball shops, elds, many hardware
stores and sporting goods stores will have the equipment and trained personnel to ll paintball CO2tanks.
The eXTCyTM is factory congured for use with
CO2. Its dwell setting must be changed to obtain
optimum performance with HPA. See the Firing
Modes / Dwell section of this manual to learn how.
NOTICE
04
Although the eXTCyTM can be powered by
compressed air, typical home, garage or industrial
air compressors cannot provide the high pressures
required to ll a paintball HPA tank. Paintball HPA
systems can be relled by paintball elds and
stores which use higher pressure compressors
similar to those used in the SCUBA and reghting
industries.
NOTICE

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CO2is usually not recommended for electronic paintball markers. This is not the case, however with
the eXTCyTM. The eXTCyTM can function extremely well with CO2as a power source, but doing so does
require the correct conguration. The use of CO2will not damage the seals in the eXTCyTM, freeze or
cause damage to its circuit board.
The important thing to remember if using CO2is that best performance can be achieved when only
gasseous CO2is fed to the eXTCyTM, and liquid CO2remains in the tank.
Although the relief valve integrated into the eXTCyTM’s vertical regulator provides the marker with
protection from pressure spikes, those pressure uctuations can cause poor performance, and
temporary blockage of the eXTCyTM’s solenoid valve.
The bottom-line ASA tting on the eXTCyTM places the CO2 level, like in Figure 5. When the marker is
held in typical ring positions the liquid CO2 will pass through the valve into the marker unless an anti-
siphon system is used.
Anti-siphon CO2 tanks contain a J-shaped tube that draws gaseous CO2from the top of the tank
when it is in a horizontal position. Anti-siphon tubes must be professionally installed, to ensure that
critical safety checks are performed during valve installation. Anti-siphon CO2tanks should not be
used with remote hoses.
Alternative CO2arrangements include placing the CO2tank vertically in a pack, and using a paintball
remote hose to feed CO2to the eXTCyTM. This arrangement not only prevents liquid CO2from entering
the marker, but also makes the marker assembly lighter weight. Another possible conguration is to
use a third-party ASA or ASA mounting adapter which mounts a standard CO2tank at an angle like in
Figure 4. In this arrangement gravity keeps the liquid CO2below the valve neck.
The bottom-line ASA tting on the eXTCyTM can be removed by unscrewing the two industry-standard
10-32 mount screws holding it to the grip frame after unscrewing and removing its on/off knob. If
replacing the ASA, be sure the model chosen takes into account the type of gas system being used
(horizontal for anti-siphon CO2tanks or compressed air, angled for standard CO2 tanks).
GASES PLEASE READ CAREFULLY
FIG. 4
FIG. 5
ANGLED CO2[CUTAWAY VIEW]
CO2 WITH ANTI-SIPHON [CUTAWAY VIEW]
CO2 may also be congured with a remote
hose with-out Anti-Siphon. [Not Shown]
IMPORTANT
USING CO2
BOTTOM-LINE ASA
05

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OVER TIME BATTERIES MAY LEAK. ALWAYS REMOVE THE
BATTERY FROM THE eXTCyTM WHEN STORING FOR FOR
MORE THAN A MONTH.
BATTERY
The eXTCyTM is powered by a standard 9-volt alkaline battery. Lower cost “heavy duty” batteries will not
consistently deliver the amperage needed to operate the eXTCyTM reliably. Erratic performance, especially
drops in velocity or skipped shots during rapid re can result from a battery that is not delivering full
power.
The eXTCyTM is also compatible with 9-volt rechargeable batteries. Because specications of batteries
vary widely from brand to brand, use of any rechargeable battery will require testing to determine if it
can power the eXTCyTM reliably and t correctly in the grip frame. Some NiCD “9v” rechargable batteries
actually operate at 7.2 volts. These types of batteries will not work well with the eXTCyTM.
Each time the eXTCyTM is turned on, the power button LED will blink 5 times rapidly, with its color indicating
the estimated charge level of the battery. Green indicates a charge level between 75% and 100%. Yellow
denotes a charge level between 50% and 75%, while red ashing indicates that the remaining charge is
estimated to be below 50%. It is important to note that different types and even brands of rechargeable
batteries will give different readings than alkaline batteries., so experience will be the best teacher as to
how much remaining use to expect once a reduced charge level is indicated.
Any time the eXTCyTM exhibits erratic performance, drops velocity or skips shots while rapid ring, does
not shoot or does not turn on, the rst step in troubleshooting should always be to replace the battery with
a brand-new, name-brand alkaline battery.
To replace the eXTCyTM battery, use a 5/64-inch allen wrench to remove the two screws from the left side
of the rubber grip, then open the grip. Be careful opening the grip from the grip frame. Folding the grip
back around the trigger frame may seem convenient, but may cause tearing or stretching in the center of
the grip, which will cause it to pucker or t poorly when reinstalled. As an alternative to folding the grip
open, simply remove it entirely by removing the two grip screws from its right side.
Remove the old battery, taking care not to bend, kink or strain its wires. Unsnap the battery from its
connector by pulling on the connector, not the wires. Snap in a fresh battery, then place that in the grip
frame, tucking the wires into place, before closing and re-securing the grip. The battery and connector
should t snugly in the battery space, so that they do not shift around during use. Some off-brand batteries
may be too large to t correctly in the grip frame. If this is the case, do not force the battery into position,
instead replace it with a name-brand alkaline battery.
FIG. 6
BATTERY
ALKALINE BATTERY
06