Ive got a JCS MKX that appears to have an overpressure issue after its been gassed up with Co2. Where can I find a manual or assistance in getting this cleared up?
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Seems like the model was the "Ailas Launcher" if that helps your search. Best I could find was this post on Reddit were a user claimed the manual was on a Nerf Facebook group, but the link is expired and didn't work for me in WayBackMachine. Might be worth chasing that user down?
Also a link to an oring kit:
Last edited by PumpMan10988; 04-19-2025, 12:20 PM. -
Alias MKX™ Scenario Launcher Manual 02-JULY-2007
Made in the U.S.A.
By Blackpoint Engineering, LLC, d/b/a JCS Jet City Specialties ®
65695 US 33, Goshen, IN 46526 telephone 574.642.3153 page 1 of 5
Alias MKX™
! WARNING !
USE AT YOUR OWN RISK. THIS IS NOT A TOY. This product may cause serious injury or
death. Eye protection designed for paintball use must be worn by user and persons within range.
Do not remove any part and do not service while launcher is pressurized. This product is not
intended to be fired directly at humans or animals. All persons within 30 feet should wear ear
protection to prevent hearing loss.
Alias MKX™ Scenario Launcher Manual 02-JULY-2007
Made in the U.S.A.
By Blackpoint Engineering, LLC, d/b/a JCS Jet City Specialties ®
65695 US 33, Goshen, IN 46526 telephone 574.642.3153 page 2 of 5
F-69™ foam rocket by JCS
! CAUTION ! NEVER SHOOT DIRECTLY AT TARGETS
USING A LOW TRAJECTORY. The projectile
could bounce off the target and cause injury.
The projectile can have a muzzle velocity in
excess of 120MPH.
FOREWORD
We are pleased you chose our product! You will get many years
of enjoyment using JCS® brand paintball products.
Paintball is an exciting and growing sport. The Alias MKX™ was
created to give a player an exciting new experience on the field.
This product was designed to launch a foam rocket approximately
100 yards (300 feet) or more. The projectile should NEVER be
launched directly at a target. The MKX is designed to “lob” the
projectile at a target by launching the projectile at an angle. For
best performance, we recommend using the JCS® F-69™ foam
rocket with your launcher. We designed the F-69™ especially for
the MKX launcher. It can have a range of 150 yards (450 feet) or
more when used at the same pressure and trajectory as other
foam rockets.
Remember: YOU make paintball a safe sport! Never transport the
Alias MKX™ loaded! The MKX should be transported in a bag or
carrying case out of sight. It is YOUR responsibility to comply with
applicable laws.
Completely read and understand this manual before using the
Alias MKX™. You may contact us with any questions.
OPERATION
RECOMMENDED PROJECTILE
· The foam rockets sold by Blackpoint Engineering, LLC, are the only projectiles recommended
for use in the Alias MKX™. The JCS® F-69™ series of foam rockets are the recommended
projectile.
DEVICE SAFETIES
· The Alias MKX has many features designed to protect the user from malfunction. Altering,
defeating, or failing to maintain these safeties could be a violation of law and will void your
product warranty.
· Breech loaded projectile. Although you may not realize it, breech loading the projectile is a
safety design. Because the projectile is not in line with the firing mechanism, any accidental
firing is not likely to create an injury.
· There is a traditional trigger safety mechanism that physically blocks the trigger from firing.
Make sure this is in the “PUSH SAFE” position and the trigger is locked.
· Next, the regulator is preset for 120 to 160 psi output. The MKX performs well in this range.
The regulator is designed to vent over pressure and relief stored pressure in the MKX firing
chamber.
· The firing chamber has an over pressure device set to exhaust pressure over 220psi to
280psi or more.
USER SAFETY
· Remember: YOU make paintball a safe sport! You should observe and inspect your MKX as
suggested as a MINIMUM. Call us before using this product if you have ANY questions. We
Alias MKX™ Scenario Launcher Manual 02-JULY-2007
Made in the U.S.A.
By Blackpoint Engineering, LLC, d/b/a JCS Jet City Specialties ®
65695 US 33, Goshen, IN 46526 telephone 574.642.3153 page 3 of 5
are available during the week, M-F, 8AM to 4PM, 574-642-3153, Indiana time zone.
Remember NOT to fire the MKX directly at your target. It is intended to “lob” a foam rocket at
a target.
· Wear hearing and eye protection. Although regular paintball gear is required, it may not
protect you from injury or death.
· Take your time to understand the MKX. It is obviously NOT a traditional piece of paintball
gear. Never launch anything but the recommended projectile. Call Blackpoint Engineering
directly with any questions.
· Use standard practices when handling the MKX. The MKX IS NOT A TOY. Use it and handle
it with respect.
PREUSE CHECK
· Examine the MKX for any loose bolts or components
· Examine the barrel for anything other than the recommended projectile. NEVER fire anything
but the recommended projectile from this device. Doing so will void your warranty and may
violate law.
· Make sure the safety is in the “PUSH SAFE” position and locks the trigger to prevent
accidental firing.
· Examine the tank threads, gas holes, and sealing surfaces for contamination.
AIR SUPPLY
· The MKX will function with “High
Pressure Air” or “Co2” Systems. We
recommend High Pressure Air
Systems with a regulated air output
that does not exceed 900psi. Co2
systems will work, but do not have a
regulated output. Direct sunlight to a
Co2 bottle can create Co2 pressures in
excess of 3000 psi. The MKX regulator
is factory preset for a predetermined
output. WARNING: Never allow the
input pressure to exceed 900 psi!
· With the safety on, securely attach an
air supply. You will hear gas fill the
main chamber (approximately 1.5
second)
· A 12 gram Co2 adapter may also be used. You can get about 2 shots per 12 gram.
LEAKS
Although we are confident you will have no problems, we do want you to have an idea how to
troubleshoot you MKX. We are available during the week to answer any questions you may
have.
· After connecting air supply, the main air chamber is pressurized. There should not be any
leaking or hissing sounds.
· If the leaking occurs near the tank mount, your bottle o-ring may need replaced.
· If you hear or feel any leaking air, disconnect the supply, wait for the MKX to exhaust all gas,
and then re-connect the air supply. If leaking didn’t stop, quickly listen and feel for the leak
location. Either an over-pressure safety device is venting excess pressure or a seal needs
inspected. If you’re using Co2, make sure your gas bottle in not in sunlight.
· If the regulator is venting gas, then it may be necessary to turn down the setting. See
maintenance section for regulator adjustment.
LOADING
· Always load a projectile while the muzzle is pointed at the ground.
Alias MKX™ Scenario Launcher Manual 02-JULY-2007
Made in the U.S.A.
By Blackpoint Engineering, LLC, d/b/a JCS Jet City Specialties ®
65695 US 33, Goshen, IN 46526 telephone 574.642.3153 page 4 of 5
· The patented push button hinge design allows quick breech loading access. Simply push the
button to unlock the hinge. The barrel slides forward, then rotates up for loading.
· Insert the recommended projectile into the barrel until the fins are flush with the breech-end
of the barrel. We find variations in the diameter of the foam projectiles. Tighter fitting
projectiles seem to fly farther than looser fitting ones. Because the recommended projectiles
are not manufactured by Blackpoint, we do not have control over the production tolerances
used to produce them. CAUTION: Because we do not make the projectile, results during
firing will vary.
· Engage the barrel by sliding it back UNTIL THE LOCKING HINGE LOCKS.
FIRING
Although the basic MOD1 (model 1) Alias MKX™ does not come with sights, you will be surprised
how accurate you can be with a little practice. Optional sights are available. Place the MKX
on your shoulder for firing. Aim approximately 30 degrees up for a 100 yard target. Aim
higher, 60 degrees or more, for closer ranges. “LOB” the recommended projectile at your
target. NEVER SHOOT AT TARGETS CLOSER THAN 100 FEET.
· Place the Alias MKX™ on your shoulder and steady it with both hands. Looking at your
target, estimate the inclination of the MKX based on the range to target. (This takes some
practice.) You will also want to consider: tank pressure, wind, projectile fit in the barrel (tight /
loose), and projectile condition.
· Release the safety and pull the trigger to fire the MKX.
· Reset the trigger safety after each shot.
· Disconnect the air supply and wait for the MKX to discharge completely BEFORE removing
any protective gear.
· Always set the trigger safety when not using the MKX.
MAINTENANCE
WARNING: DISCONNECT AIR SUPPLY BEFORE MAINTENANCE!
Any inspection and maintenance should be done on a clean dry surface. Be vary careful when
disassembling so you do not lose any components. When reassembling your MKX, you should
use caution NOT to let contaminates enter any area. Wash your hands before you start. Any dirt
or contaminates should be blown, washed, or wiped away. Be careful about using cleaners that
could harm aluminum.
USER SAFETY
We recommend an air-smith at your local paintball store examine the MKX if you are
uncomfortable doing it yourself or if there is anything in this manual you do not
understand.
Ship your MKX to Blackpoint Engineering. We will examine your unit free of charge and
replace any seals, parts, or components as required for free under your product warranty.
You must pay for shipping to and from Blackpoint Engineering. We recommend sending
your item “return receipt” via the US Post Office or UPS so you have proof we received
your item. Blackpoint will not accept responsibility for items “lost in shipping”.
1. DISCONNECT AIR SUPPLY FIRST!
2. Make a written record of each item you inspect. Reviewing notes often helps
troubleshooting if a problem arises.
3. Wear safety glasses at all times during servicing.
Alias MKX™ Scenario Launcher Manual 02-JULY-2007
Made in the U.S.A.
By Blackpoint Engineering, LLC, d/b/a JCS Jet City Specialties ®
65695 US 33, Goshen, IN 46526 telephone 574.642.3153 page 5 of 5
LIMITED WARRANTY: BLACKPOINT ENGINEERING, LLC DISCLAIMS ALL IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHER IMPLIED WARRANTY. BLACKPOINT ENGINEERING,
LLC, SPECIFICALLY WARRANTS THAT THIS PRODUCT WILL BE FREE FROM DEFECTS IN MATERIALS AND WORKMANSHIP FOR
A PERIOD OF 365 DAYS FROM THE DATE OF ORIGINAL PURCHASE BY THE ORIGINAL OWNER/PURCHASER. THIS WARRANTY
IS LIMITED TO REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT. BLACKPOINT ENGINEERING, LLC, SHALL NOT BE
RESPONSIBLE FOR ANY LIABILITY BEYOND REPAIR OR REPLACEMENT OF THE PRODUCT. IF THE PURCHASER/USER DOES
NOT AGREE TO THESE TERMS, PLEASE RETURN THE UNOPENED PRODUCT TO BLACKPOINT ENGINEERING, LLC, FOR A
COMPLETE REFUND OF YOUR PURCHASE PRICE, EXCLUDING SHIPPING. ANY RETURN SHOULD BE SENT, POSTAGE PREPAID,
TO: BLACKPOINT ENGINEERING, LLC, 65695 US 33, Goshen, Indiana 46526. IF PURCHASED FROM A VENDOR OTHER
THAN BLACKPOINT, THIS PRODUCT IS TO BE RETURNED IN ACCORDANCE WITH THAT VENDORS RETURN POLICY.
GENERAL INSPECTION
We recommend general inspection after every 500 shots. However, you should
frequently clean and maintain your MKX after each use. Take notes about any potential
problems.
SAFTIES
· Listen for leaking sounds. No leaky sounds is good.
· Test trigger safety locked / unlocked.
INTERNAL
· The main piston seals will eventually need replaced. A simple set of tools is all you
need to assemble and disassemble the MKX. O-Ring replacement parts are available
directly from us.
· Look at the barrel for any wear or misalignment. It should lock securely in position
before firing.
REGULATOR
· The regulator seals should be inspected after every 500 shots. It is NOT necessary to
completely disassemble the regulator. Blue medium ‘loc-tite’ is applied to threads
when we don’t want them to come loose.
REGULATOR ADJUSTMENT
· ALWAYS disconnect air supply before adjusting the regulator.
· The knurled knob on the front of the regulator is factory set to about 120 to 140 psi.
This knob typically comes completely tight from the factory.
· With excessive input pressure, you may hear the regulator exhausting gas. If this
happens, you can turn down the regulator by turning the knurled knob counterclockwise;
this decrease pressure on the main spring.
SEAL REPLACEMENT
· The MKX is designed with many standard size components which simplifies
maintenance for our customers.
· BUNA N070 O-Rings are used throughout. The regulator has special white o-rings for
handling very low temperatures and high pressures.
· We recommend purchasing any replacement o-rings from us so you can be assured
the correct type and size is used.
· Should any white seals on the regulator need replaced, we recommend shipping your
regulator only (or the whole MKX) in for warranty repair. We will typically service your
product after the warranty period (for original purchaser) for little or no charge at our
discretion.
PAINTING ALUMINUM
· Follow all product instructions. Be in a well ventilated area. DO NOT paint near any
gas appliance, heater, stove, etc.
· Use alcohol to prepare the surface to be painted.
· For aluminum, use a zinc based primer before your colors.
· Follow painting instructions on spray paint can.
LUBRICATION
· We use a “white lithium” grease on most surfaces. This can be purchased at most
hardware stores or tractor supply stores. We use the lithium grease during assembly.
· All moving parts should be inspected and lubricated after each use as needed.Comment
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You can't. I've dealt with 2 of these at this point. The manuals that do exist are text only and don't include any o ring sizes. They are pretty pointless. I think I have somewhere the o ring sizes if you need them, the larger 100 series rings in the body anyway.
I rebuilt one for a friend of mine and another one for a client. Overall they are really well built and fairly straight forward to work on. If you want someone to do the work I can manage it. Shipping won't be cheap though assuming you are not around Portland or.
I'm betting the regulator seat is shot though. I know I replaced the one in my buddies launcher so I'm guessing it was something I either had or could get my hands on so that's good news for you at least
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in looking at the reg, do you think it could be replaced with an LPR? I did pick up a rebuild kit from O-ring monkey. The white Orings look like ones found in a mag so if the Oring monkey parts kit wound work ill try some mag seals. I havent gone any further than the front regulator assembly.
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It is an LPR. If you are asking if you can replace the whole thing with a separate regulator, I don't see any reason you couldn't. If I remember right it needs around 150-200 psi so just pull the regulator seat out so it just bypasses any air that comes in and run any standard regulator into the vertical ASA. You won't be able to remove the stock reg unless you get some custom parts machined but bypassing it should be easy enoughOriginally posted by Chemical-x.....ahain View Post
i assume you are using a bucket changer to run CO2 so from the reg just figure out an elbow and mount the bucket
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I had figured it should be easy to do. I was able to resurrect it on the stock listed seals. I used a bottle Ring and and the rest of the stock Orings, I gave them all a good dose of white grease as well. Im not sue if it was a side effect of doping it up with the grease but the velocity seems quite low. with the barrel leveled out im only pulling about 30-40 feet with a nerf football. I may try to rig the LPR tester to see what im getting as reg output. I appreciate your input on this, I do plan on replacing the seals with the new kit when it comes in.Comment
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