®

TECHNICAL MANUAL

M17 CQC

Your M17 CQC Includes:

M17 CQC Marker

Polymer Flip Up Sights
1 18 Round FIRST STRIKE Magazine
1 Adjustable Barrel Retainer
1 Tool Kit and Barrel Plug
1 False Magazine
1 Hopper Feed Kit

INTL. ENGLISH
WWW.MILSIG.COM
V.14-01 1
WARNINGS

• Do not load or fire this marker until you have completely read this manual and are familiar with its
safety features, mechanical operation, and handling characteristics.
• Handle this and any marker as if it were loaded at all times.
• Keep your finger off of the trigger until ready to shoot.
• Do not look down the barrel of a paintball marker. Accidental discharge into the eyes may cause
permanent injury or death.
• Keep the marker on safe until ready to shoot.
• Keep the barrel plug installed on marker when not shooting.
• Never point the marker at anything you do not intend to shoot.
• Never fire your marker at anything you do not intend to shoot because there may be balls or foreign
debris lodged in the chamber, barrel, and / or marker valve.
• Do not shoot at fragile objects such as windows.
• Never fire your marker at personal property of others; the paintball can stain the paint of automobiles
and houses.
• Always keep the muzzle pointed in a safe direction, even if you stumble or fall.
• Eye, face, and ear protection designed specifically to stop paintballs in the form of approved goggles,
and full face mask should be worn by the user and any person within range.
• Never shoot at a person who is not protected by eye, face, and ear protection designed for paintball.
• Pressurize and load the marker only when the marker will be immediately used.
• Before storing or disassembling be sure to point your marker in a safe direction, fire several times to
be sure there are no balls lodged in the chamber and / or barrel or air left in the marker. Install barrel
plug.
• Store the marker unloaded and degassed in a secured place.
• Familiarize yourself with any warnings and instructions listed on the air supply cylinder.
• Contact the air supply cylinder manufacturer with any questions.
• Do not field strip or otherwise disassemble this marker while it is pressurized with air.
• Dress appropriately when playing the game of paintball. Avoid exposing any skin when playing the
game of paintball.
• Even a light layer will absorb some of the impact and protect you from the paintballs.
• Keep exposed skin away from escaping gas when installing or removing air supply cylinder or if the
marker or air supply is leaking. Compressed air, CO2, and nitrogen gasses are very cold and can
cause frostbite under certain conditions.
• Use only 68 caliber paintballs, never load or fire any foreign objects.
• Avoid alcoholic beverages before and during the use of this marker. Handling markers while under the
influence of drugs or alcohol is a criminal disregard for public safety.
• Avoid shooting an opponent at pointblank, 2 Meters or less.
• Familiarize yourself with instructions listed on air supply cylinder or adaptor. Contact the air supply
cylinder or adaptor manufacturer with any questions.
• Always measure your marker’s velocity before playing paintball, and never shoot at velocities in excess
of 300 feet per second.

WARRANTY

MILSIG warrants that this product is found free from defects in materials and workmanship for a period of
1 year from the original date of purchase by the original owner. Unauthorized modifications, alterations,
neglect or abuse of this product voids this warranty. The warranty only covers the parts and labor required
to repair the product to proper working order. MILSIG is dedicated to providing you with the best product
and excellent support for your ultimate paintball experience.

2
 EXCEPT WHEN MARKER IS IN USE, ALWAYS MAKE SURE THAT THE BARREL PLUG IS
INSTALLED AND THE SELECTOR SWITCH IS IN SAFE MODE, WHICH DISABLES THE TRIGGER.

SAFETY

To turn ON the Safety (SAFE MODE): Rotate Selector Switch counterclockwise until the aarow points to “0”
To turn OFF the Safety (FIRE MODE): Rotate Selector Switch clockwise until the aarow points to “1” for semiauto;
to “∞” for full auto.

BARREL PLUG

1. Insert plug into barrel and loop under the Magazine Well as shown.
2. Pinch cord length adjuster button and hold to back of Magazine Well as you pull cord through it until adjuster is
snug against the back of the magazine well, then release.
3. Check to be sure there is enough cord elasticity to pull cord / adjuster off to remove barrel plug for firing.
4. After the cord length is adjusted, lock cord length by tying a knot in the cord against the back of the adjuster.

3
 QUICK REFERENCE - USING YOUR MARKER
Before playing with your new M17 CQC paintball marker there are a few important steps to take.

STEP 1. FEED MODE SELECTION

Your M17 CQC marker is factory preset for magazine feed operation, if this is your desired
feed mode, proceed to STEP 2.
LOADER FEED SET UP

B 3 B 2

B 1

A. Remove Side Feed Port Cover by removing bolts A with 2.5mm Allen Wrench; store Side Feed Port cover,
bolts, and washers in a safe place for future use.
B. Place the main Loader Feed Adaptor body (B1) over the Side Feed Port located on the right side of the Receiver.
C. Connect the Loader Feed Adaptor back plate (B2) to the main Loader Feed Adaptor Body (B1)
D. Install screw (B3) with 2.5mm Allen Wrench, turn clockwise to tighten, your Loader Feed Adaptor should now be secured.
E. Hook the prongs of the Loader Feed Adaptor over the left side of the Receiver.
F. Insert False Magazine and tap firmly into place.
G. Install ELECTRONIC Loader and secure to Loader Feed Adaptor.

WARNING: USE ONLY ELECTRONIC LOADERS, MARKER WILL NOT FUNCTION

PROPERLY WITH GRAVITY FED LOADERS!

STEP 2. FILL MAGAZINE

A. Turn Magazine winder clockwise until tight. Do NOT overtighten.

B. Hold down Ball Detent Bar and feed paintballs in one by one.
C. Fill to capacity. Do NOT partially fill Magazine.

NOTE.

The CQC comes with a 18rounds Paintball / FIRST STRIKE

projectile magazine.

For use with more brittle paintballs, we recommend the use of the 20rounds
paintball magazine only. (Purchased Separately)

The stronger spring tension of the 18rounds

magazine may lead to marker malfunctions.

For easier magazine winding, we recommend the use of the Magazine

Winding Tool (Product Code: MWT-001)

4
 STEP 3A. ATTACHING AIR SOURCE

6
3
2

5
4 Push to adjust stock position,
Pull down to install over bottle.
1

Your M17 CQC marker is factory preset to accept air via a 13CI HPA (High Pressure Air) Bottle. We recommend using the
MILSIG Factory 13CI HPA bottle with MILSIG NODE™ Air Regulator. (Purchased Separately) The MILSIG NODE™
Air Regulator has features that make it the best functioning Air Regulator for your M17 paintball marker, these include:
Pin-Valve-Less Design, Built in On / Off, Adjustable Bonnet Positions, and Adjustable output pressure (Vendor Serviced)

HPA BOTTLE INSTALLATION WARNING: USE ONLY HIGH PRESSURE AIR (HPA). DO NOT USE CO2!
A. Ensure breech is empty and barrel plug is installed (see P.3)
B. Ensure that the HPA regulator output pressure is set between 600 and 850psi, and has adjustable bonnet positions.
C Lower Stock Guide Rail and insert bottle into back of the marker, turn clockwise to tighten.
D. With the Air Bottle In place, check the position of the fill nipple and pressure gauge. If either the fill nipple or pressure
gauge obstructs the guide rail, follow the Regulator Manufacturer’s guide to reposition the Air Regulator.
E. Install stock over the bottle and adjust to the desired position, fill Air Bottle to appropriate air pressure.

MILSIG NODE™ Regulator Bonnet Position Adjustment

MARKER
A. ENSURE that the Air Bottle is DE-PRESSURIZED. Adjusting the Bonnet
position with a pressurized Air Bottle can cause personal injury.
B. Locate 3 Allen Set Screws inside Bonnet Adjustor Ring, illustrated as “B”.
C Loosen all 3 Allen Set Screws with 2.0mm Allen Wrench, do not remove
completely.
D. Rotate Air Bottle or Bonnet to the desired position, retighten all 3 Allen Set
screws.
A
MILSIG NODE™ Regulator Built-In On / Off

Unlike conventional Air Regulators, the MILSIG NODE™ Air Regulator

does not use a pin valve to shut off airflow. Instead, it uses a built-in
B air shut off that is controlled by a rotating On / Off ring. By eliminating the
use of a pin-valve, maximum air flow is achieved. The On / Off also serves
as a marker degasser. When the rotator ring is turned to the OFF postion,
the entire marker is degassed. This allows the Air Bottle to be removed
with the marker and ASA in a pressure-less state, which dramatically reduces
wear and tear on the marker ASA and the regulator bonnet.

To turn Air On, rotate On / Off rotator ring, illustrated as “A” from right to left;
To turn Air Off, rotate from left to right.

STEP 3B. ATTACHING BARREL AND ACCESSORIES

Insert barrel into marker, turn clockwise to tighten. Your M17 CQC marker comes with detachable sights, which are not factory
installed. Place sights at the desired rail position and tighten with 3mm Allen Wrench. Any other accessory should be attached
to the marker at this time.

5
 STEP 4. CHECKING THE VELOCITY

INCREASE
FPS

DECREASE
FPS

The Velocity Adjustment Set Screw is located on the underside of the HEAT CORE Regulator Adjust output pressure with 3mm Allen Wrench via
Velocity Adjustment Set Screw
A. Make sure you and everybody around you is wearing Paintball Approved Masks.
B. Make sure the Marker is on safe by checking the Selector switch.
C. Fill Pre-Installed Air Bottle with HPA (High Pressure Air) Only.
D. Insert pre-filled Magazine, release safety, and fire several shots over chronograph to check initial muzzle velocity;
the factory setting is approximately 275fps, but a + / - 15 fps variance can occur due to different playing environments.
E. Increase velocity by turning velocity adjustment set screw clockwise, or decrease velocity by turning Adjustment Screw
F. counterclockwise. Fire several shots to retest velocity once further adjustments are made.

NOTE: Allow Air Pressure to stabilize inside the marker after every velocity adjustment by firing multiple
shots over the Chronograph. Velocity changes may require several shots before taking effect.
Marker may discharge one single shot when it is first aired up. This is caused by a bolt left in its
forward position from previous use. The bolt will reset itself and is not a sign of a malfunction.

WARNING: DO NOT EXCEED 300 FPS, DOING SO IS UNSAFE FOR YOURSELF AND OTHER
PLAYERS AROUND YOU AND CAN CAUSE DAMAGE TO YOU MARKER.

CHANGING MAGAZINE

PUSH

RELEASE MAGAZINE LOAD MAGAZINE

With the barrel pointing AWAY from you, Orient Magazine as shown and insert FIRMLY into
depress the Magazine Release Button. Magazine Well until it clicks and locks into place.
6
 TRIGGER ADJUSTMENT

Your M17 marker is designed to function primarily as a Semiautomatic fire, Mechanical Magazine Fed Marker. It is tuned
for maximum efficiency and accuracy in this firing mode. It also has a Full Automatic fire capability that can be used
periodically to enhance your game play. While the default Semiautomatic fire mode will function within the normal working
perimeters of the marker, the Full Automatic firing mode has more specific perimeters that must be met for smooth operation.

A. Muzzle Velocity must be set between 240 fps and 290fps

B. Air tank input pressure must be between 600 and 850psi (Do NOT exceed 850PSI!)
C. Trigger must be properly set

The Trigger may need periodic adjustment for the Full Automatic fire mode to function smoothly. Full Automatic Fire can only
be achieved when the Trigger Adjuster (illustrated as “B”) is set to its “sweetspot”. The sweetspot location changes
with the system operating pressure or muzzle velocity.

For example, if the marker is set up for use at an outdoor field at 280fps, and then lowered to 240fps for indoor use, the
Full Auto mode may not function smoothly. A small adjustment may be necessary once the marker is set at the lowered velocity,
and again when the velocity is raised back up for outdoor use. Note that your M17 trigger is factory preset at 275fps.

B A

Looser = Less Sear Contact

(Less Stability - MISFIRE)

A: TRIGGER ADJUSTER LOOSE

SWEET SPOT
SET SCREW
B: TRIGGER ADJUSTER TRIGGER ADJUSTER TIGHTNESS
TIGHT
TURN “B” CLOCKWISE to TIGHTEN, Tighter = More Sear Contact
COUNTERCLOCKWISE TO LOOSEN (More Stability - SEMI AUTO ONLY)

The Trigger Adjustment process should be performed immediately after the marker has been chronographed, and
the desired muzzle velocity is set.

A. Remove magazine or hopper and clear the marker of paintballs. (The entire Trigger Adjustment process is
performed by dry firing only.)
B. Ensure that there is sufficient Air Pressure inside the Air Bottle.
C. With Selector Switch set to Full Auto Fire mode, pull the trigger and perform a 2-3 second burst.
D. Note how the marker behaves during the burst test, if the Full Auto Burst is inconsistent, or that the marker misfires,
the Trigger Adjuster will need to be tightened. If the marker does not sustain a steady burst, or that it only shoots
Semiauto, the Trigger Adjuster will need to be lossened. If the maker does a steady burst, no adjustment is needed.
E. To adjust, lossen the Trigger Adjuster Set Screw (labeled as “A” on the diagram above) by turning it counterclockwise
with a 1.5mm Allen Wrench; do not completely remove.
F. Insert a 2.5mm Allen Wrench into the Trigger Adjuster (labeled as “B” on the diagram above) and turn clockwise to
tighten, and counterclockwise to loosen. Turn Trigger Adjuster only 1/8th of a turn at a time, and fire a test burst after
every minute adjustment. Once you are able to achieve a smooth burst, the Trigger is set.
G. Tighten Trigger Adjuster Set Screw “A” by turning it clockwise. Turn it until finger snug, do not overtighten.

7
 BOLT RESET HANDLE (BRH)

PUSH IN
BEFORE
USING
MARKER

PULL
TO
RESET
BOLT

The BOLT RESET HANDLE (BRH) is located on the top of the receiver, directly under the Top Rail. Its shape and location on
the receiver is the same as that of a real Armalite Rifle. However, it DOES NOT FUNCTION AS A COCKING HANDLE, and there
is NO NEED to “rack” it to put the marker into battery before use. Your M17 marker utilizes the MILSIG HEAT CORE™
operating system, which is a “blowforward” operating system. The bolt will automatically go into battery when the marker is
aired up.
There are two common scenarios which will require the use of the Bolt Reset Handle, they are as follow:
A. A stuck bolt caused by a paintball or FIRST STRIKE round break inside the breech of the marker
B. A spluttering bolt caused by insufficient air pressure (low air or velocity set too low)

To Reset The Firing Bolt

A. Put the marker in SAFE MODE
B. With the marker pointing away from you, grab the Bolt Reset Handle Retention Hinge
(Located on the left hand side of the Bolt Reset Handle, illustrated as “A”) and the Bolt Reset Handle (illustrated as “B”)
simultaneously and pull the BRH towards you until its furthest back position. Note that the travel distance of the handle
is very short, at approximately 5cm or 2”. Do NOT release the BRH at this point.
C. Manually push the BRH back inside the marker to its most forward postion.
D. Take appropriate measures to further troubleshoot marker if necessary.

WARNING!

DO NOT operate your M17 marker before the Bolt Rest Handle is pushed into its most forward position, firing the
marker with the BRH pulled back can cause the marker to malfunction, and potentially damage the BRH or the marker
itself. The firing bolt is directly linked to the BRH, and it moves with tremendous force during the firing cycle;
therefore, the BRH must be in its most forward position to ensure the firing bolt’s travel path is not obstructed.

The BRH is spring loaded and will pull itself forward under spring tension. However, do NOT release the BRH when it
is at its most back position, thus allowing it to return to the forward position solely under spring tension. Doing so will
cause the BRH to slam forward into the marker body with more force than is neccessary, thus causing unneccessary
wear and tear to the BRH and the marker body itself. Please note that any damage to your M17 marker caused by misuse
of the BRH is NOT covered by the limited warranty.

8
Selector Switch / Safety:
Your M17 CQC selector switch is non abidexterous, however, you can swap its position from the left hand side
to the right hand side. Simply remove the selector switch by removing the selector switch locking screw with a 3.0mm
Allen Wrench. Re-install the selector switch on the opposite side of the grip frame and re-install locking screw.

Standardized AR Pistol Grip:

Your M17 CQC Pistol Grip is standard AR sized. The grip frame will accept most aftermarket pistol grips designed
for the Armalite Rifle. Do note that some aftermarket grips may not have contours that matches perfectly with your M17
grip frame. To change grip, simply remove grip locking screw with 3.0mm Allen Wrench.

Note: Some aftermarket grips may include its own grip screw, use ONLY the factory M17 screw to attach all grips.

MAINTENANCE
WARNING:
Before conducting any marker maintenance, remove magazine / loader, point marker in a safe direction, and discharge until degassed.

These Additional Tools may be required for maintenance or marker take-down:

Non-Corrosive Lubricant
(for best results use MILSIG SOS II Lube)
Small Phillips Head Screwdriver
Small Flat Head Screwdriver
Small Pick for removing O-Rings
Tech Mat

Maintenance Intervals:

We recommend a thorough check of the marker before every use, to ensure that all parts are securely installed, and
o-rings are properly lubricated for best performance.

Pre-Use Check:

1. Remove HEAT CORE from marker by removing RECEIVER / HC PINS. (refer to P. 12 “RECEIVER 2”)
2. Remove Bolt from Air Chamber, check Bolt and make sure that all parts are securely fastened.
3. Check Air Chamber and make sure that all parts are securely fastened.
4.. Check AC Bumper O-Ring, replace if there are any signs of wear. (refer to P. 13 “HEAT CORE”)
5. Place one dab of lubricant on the surface of the AIR CHAMBER BODY (refer to P. 13 “HEAT CORE”)
6. Remove any excess lubricant with a soft cloth or paper towels. DO NOT over lubricate, over lubrication
can lead to marker malfunctions.
7. Place one dab of lubricant on AC Main O-Ring (refer to P. 13 “HEAT CORE”).
8. Place Bolt over Air Chamber, install Bolt Spring, and re-install HEAT CORE to receiver.
9. Re-Attach HEAT CORE LOCKING PINS, your marker is now ready for use.
10. Drop 1 small drop of oil into the small air hole found in your ASA. (refer to P. 13 “HEAT CORE”)
11. Check Air Bottle O-Ring, replace if there are any signs of wear.
12. Proceed to marker set up (P. 4) when ready to use.

NOTE:
Pull the trigger once when re-installing the HEAT CORE back into the Receiver Body.

REPLACING WEAR AND TEAR ITEMS:

There are TWO major wear and tear items that may need periodic replacement as they wear out. They are the “Bolt to AC Bumper”
and “AC Main O-Ring”. (Parts 13 & 15 as labeled on P.13 “HEAT CORE”) A spare unit of each is included with your marker.

TO REPLACE:

A. Bolt to AC Bumper - Remove HEAT Core from Marker, separate Bolt Assembly from Air Chamber, slide old Bumper off and
discard. Install new Bumper, ensure that it seats properly in the cut out slot of the Air Chamber, reassemble HEAT Core.
B. AC Main O-Ring (Orange O-Ring) - Remove HEAT Core from Marker, separate Bolt Assembly from Air Chamber, using a small pick,
carefully pry old O-Ring out from the tip of the Air Chamber and discard. Install new o-ring with a non pointy object, slowly work
the sides of the o-ring into the cut out slot of the Air Chamber. Put 1 drop of oil on the o-ring, reassemble HEAT Core.

WARNING:
DO NOT USE MARKER IF ANY PART OF THE BOLT OR THE AIR CHAMBER IS LOOSE. DO NOT USE MARKER WITHOUT AN
AIR CHAMBER (AC) BOLT BUMPER. DO NOT USE MARKER WITH A WORN OUT AIR CHAMBER (AC) BOLT BUMPER.

9
STORAGE:
1. Remove magazine or loader and remove remaining paintballs. AVOID reusing old or deformed paintballs.
2. Discharge remaining gas in the Marker and remove the Air Source.
3. Put Marker on SAFE and install Barrel Sleeve.
4. Place Marker in a suitable storage device.

MAGAZINE MAINTENANCE:

1. Remove all paintballs and / or FIRST STRIKE projectiles from your magazine.
2. Remove Magazine Body Screws with small Phillips Screw Driver.
3. Separate the Magazine Body, remove Magazine Feed Assembly and Magazine Winder Assembly.
4. Wipe off any left over paint residue from disassembled magazine parts. If desired, all parts can be washed with mild
soap and warm water. Make sure to completely dry all surfaces with paper towels or a hair dryer when finished.
5. Apply light coat of oil to the feed channel of the marker body, apply 1-2 drops of oil on the winder mechanism.
6. Re-Assemble magazine when finished, do NOT overtighten Magazine Body Screws.

BALL DETENT:

The Ball Detent is located under the MILSIG Name Plate, access to the Ball Detent is gained by removing 2 Name Plate Bolts.
(see P. 13 “RECEIVER 3”)

ADDITIONAL TECHNICAL INFORMATION:

For additional technical information such as How to Videos, FAQs, Performance / Upgrade Tips, and the latest product information,
please refer to our website at www.milsig.com and follow us via the following social media platforms.

facebook.com/milsigpb youtube.com/milsig twitter.com/milsigpb

SPECIFICATIONS TOTAL LENGTH: 694mm / 27.3”

BARREL LENGTH: 191mm / 7.5”
WEIGHT: 2.25kg /5.0lbs
190.90

TOTAL LENGTH: 804mm / 31.7”

BARREL LENGTH: 306mm / 12.0”
WEIGHT: 3.00kg /6.6lbs
694
277 240
127
151
180

120
245

The MILSIG “fox head” logo is a US registered trademark of C.H. Cho, owner of Han-Ma Enterprises Co. Ltd. Multiple US and International
patents pending. All rights reserved. MILSIG Industries 2014.
10
 TROUBLESHOOTING

SYMPTOM: (S) / REMEDY: (R) / CAUSE (C)

1. S: Marker won’t air up / Bolt Spultters when aired up.

R: A: Check marker input pressure (velocity). B: Check Air Source Air Pressure. C: Check Main Bolt O-Ring
C: The bolt cannot recock itself without sufficient air pressure, or a bad o-ring leading to bad air seal.

2. S: Marker fires a single shot on its own when it’s first aired up.
R: None
C: This occurs when the bolt is left in an uncocked position after its last use. The bolt will complete a single firing cycle
on its own before it recocks, this is a normal occurance and is not a malfunction.

3. S: Bolt Spultters during use.

R: A: Pull Bolt Reset Handle (See “B.R.H.” P. 8) and reset bolt. B: Check Air Source Air Pressure, refill Air Bottle if pressure is low
C: Unload magazine and check the breech for obstruction. Remove obstruction and clean breech / barrel if neccessary.
C: The Air Pressure from the air source has dipped below the Minimum Operating Pressure needed for the marker’s bolt
to cycle. A broken paintball or FIRST STRIKE round is obstructing the bolt, disabling it from cycling.

4. S: Marker misfires / fires more than one shot with each trigger pull in Semiautomatic mode.
R: A: Remove HEAT CORE, check main bolt o-ring, replace if worn. B: Remove grip frame, check Sear Spring, and Sear.
Replace one or both if neccessary.
C: A worn o-ring may cause the bolt to not seal properly, thus causing it to not cycle properly. A weakened or worn sear spring
or worn sear may cause the sear to not catch the bolt as it cycles, allowing the bolt to fire again before it is locked back.

5. S: Marker fires Single Shots only in Full Automatic Mode.

R: A: Check marker’s muzzle velocity to make sure that it is within the operating range of the Full Automatic function, adjust
velocity if neccessary. B: Follow “Trigger Adjustment” instructions on (P. 7) to make sure the trigger is properly adjusted.
C: Velocity is set outside of the operating range of the Full Automatic function, or an improperly adjusted trigger.

6. S: Marker misfires / doesn’t cycle properly in Full Automatic Mode.

R: A: Check marker’s muzzle velocity to make sure that it is within the operating range of the Full Automatic function, adjust
velocity if neccessary. B: Follow “Trigger Adjustment” instructions on (P. 7) to make sure the trigger is properly adjusted.
C: Velocity is set outside of the operating range of the Full Automatic function, or an improperly adjusted trigger.

7. S: Small Air Leak (hiss) from inside of the marker.

R: A: Remove HEAT CORE From Marker. B: Check Bolt and Air Chamber for structure integrity, if any part of the Bolt and / or
Air Chamber is loose, rebuild as neccessary. C: Check all HEAT CORE O-Rings, replace if neccessary.
C: Loose Bolt or Air Chamber causing the HEAT CORE to not seal properly. Worn O-Ring(s) causing a bad seal.

8. S: Small Air Leak (hiss) from outside of the marker.

R: A: Listen for the leak and identify source. If leak is coming from the back of the marker, it may be the air source. If leak is
coming from the underside of the marker, it may be the air source or the PRV (Pressure Relief Valve). B: If leak is from air
source, replace o-ring. If leak is from PRV, check and adjust marker velocity as needed. If PRV continues to leak air when
marker is at a safe operating pressure, it may need to be rebuilt or replaced.
C: Bad o-ring on Air Source (Air Bottle) causing a leak around the ASA. Muzzle velocity of the marker set too high and PRV is
activated. A worn or stuck PRV internal air plug causing the PRV to bleed air inadvertently.

9. S: Air Bottle cannot be screwed into the marker all the way / Fill Nipple / Air Bottle Pressure Gauge obstructs the stock rail.
R: A: Use only an Air Bottle with an adjustable position bonnet. B: Follow the Air Bottle (Regulator) Manufacturer’s instruction
on Bonnet position Adjustment.
C: This is self explanatory.

10. S: Body Screws too tight to remove / Sparks occur when twisting off Body Screws.
R: A: Use professional tools or purchase the “MILSIG PROFESSIONAL TOOL SET” for advanced marker servicing.
C: The marker’s body screws are all tightened with precision pneumatic tools at a preset tension. The tension is set high to
ensure that the receiver does not come loose under the tremendous stress of the HEAT CORE’s cycling. The included mini
tool set is designed for only basic maintenance and may not be sufficient to completely take down the marker. Sparks may
occur when loosening the body screws due to metal on metal friction and is no cause for alarm.

11. S: Can’t insert HEAT CORE back into marker once taken out.
R: A: Pull B.R.H. out, and place hammer guide pin under B.R.H. B: Pull trigger to prevent blockage of the HEAT CORE.
C: This is self explanatory.

12. S Trouble removing Barrel from marker / Barrel Back gets stuck to the marker but barrel threads out.
R: A: Always use Barrel O-Ring on all threaded points of barrels and / or barrel backs.
C: Overtightening of barrel into barrel block, worn or missing barrel o-ring causing too much friction between barrel and
mounting surface.

11
 RECEIVER 1

1 Front Sight
2 Shroud 7 Rear Grip
3 Receiver 8 Magazine
4 Rear Sight 9 Magazine Well
5 B.R.H. 10 Barrel O-Ring
6 Buttstock 11 Barrel

RECEIVER 2

3
4

5
6

1 Receiver 7
2 Receiver / H.C. Pins
3 H.C.P. Washers
4 H.C.P. Cotter Pins
5 Main Bolt Spring 8
6 HEAT Core
7 13CI HPA Tank
8 Buttstock

12
 RECEIVER 3

1A Barrel Block
1B Barrel Block Pins (2pcs)
1C Bolt Guide
2A Receiver Body
2B Top Rail
2C Receiver Body Pins (3pcs)
2D Receiver Screws A (1pcs)
11B
2E Receiver Screws B (2pcs)
3A R. Metal Bracket
R.M.B. Screws
3B
(2pcs)(M5 x 10)
4A Side Breech Cover
S.B.C. Screws 7A Grip
4B
(1pcs)(M4 x 10) 7B Grip Pin
5A Hopper Feed Neck Grip Pin Screw
7C
Hopper Feed Neck Screw (M5 x 10)
5B
(1pcs) (M5 x 20) 8A Magazine Well
Hopper Locking Screw 8B M.W. Pin (2pcs)
5C
(M4 x 14) M.W. Screws 10 Ball Detent
8C
5D Hopper Locking Nut (M4) (4pcs)(M5 x 10) 11A L. Metal Bracket
5E Hopper Feed Neck Nut (M5) 9A Name Plate L.M.B. Screws
11B
6 Bolt Reset Handle 9B N.P. Screw (M4 x 8) (2pcs)(M5 x 10)

HEATCORE 1

2
17
3 2
5 9
6 9
3
7 8

8
4 4

16 5
15
14
13 6

1 Bolt Tip 12
11 7
2 Main Bolt Body 10 Regulator
3 FR.Firing Pin Bumper 11 AC to Reg O-Ring 10
4 Firing Pin O-Rings 12 Air Chamber
5 Firing Pin 13 Bolt to AC Bumper 1 Regulator Body
6 RR.Firing Pin Bumper 14 AC Cap O-Ring 2 Reg. O-Ring 6 Reg. Cover
7 Bolt Stem Screw 15 AC Main O-Ring 3 Reg. Piston Head 7 Velo. Adj. Screw
8 Bolt Stem 16 AC Cap 4 Reg. Shim Stack 8 P. R. V.
9 Bolt Stem Guide 17 Bolt Stem Nut 5 Reg. Piston Base 9 P. R. V. O-Ring

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 EXCLUSIVE DISTRIBUTORS / SERVICE CENTERS

ASIA / H.O.
Contact Person: Nelson Lau
Business Name: Han-Ma Enterprises Company Limited
Business Address: 1F, Sec 4, Chung Ching North Rd.
Shihlin Dist. Taipei City 111, Taiwan
Business Phone: +886-2-2811-0539
Email: info@milsig.com
Web: www.milsig.com
Facebook: facebook/MILSIGPB
facebook/groups/milsigowners

CANADA
Contact Person: Evan Henshaw
Business Name: WMI Sports Ltd.
Business Address: 121 A Rink St. Suite 245
Peterborough ON K9J 2J6 Canada
Business Phone: 1-705-313-1340
Email: info@milsigdirect.ca
Web: www.milsigdirect.ca
Facebook: facebook/MilsigDirectCanada

EUROPE
Contact Person: Tom Novotny
Business Name: TACRON S.R.O.
Business Address: Husovo nam. 51/16, 39701, Pisek
Czech Rep. VAT No: CZ01389092
Business Phone: +420-70-2524600
Email: info@milsigdirect.eu
Web: www.milsigdirect.eu
Facebook: facebook/MilsigDirectEurope

USA & SOUTH

AMERICA Contact Person: Doug Brown / Aaron Yendall
Business Name: Milsig Direct LLC.
Business Address: PO BOX 177,
LANDRUM SC 29356 USA
Business Phone: 1-864-457-7384
Email: sales@milsigdirect.com
Web: www.milsigdirect.com
Facebook: facebook/milsigdirect

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