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FAQ- General Technician Tips

This section has general information and technician tips relating to all Field One Paintball markers. If you have a question or need advice on a technical issue, please email us:

There are technician tips and advice available for each Field One Paintball marker by clicking on the appropriate link below:


G6R Intimidator

Onslaught/ Insight/ Phase/ Victus


MARQ Victory(Gen2)

For Downloadable Manuals for previous generations of Bob Long and Field One Markers, please click here.


As always, whenever you are handling your paintball marker, be sure you are handling in a safe manner and following all paintball safety guidelines and local rules/ regulations.

Be sure you are in a safe area to shoot your marker. Be sure you and the people within range are wearing approved paintball eye protection.


My marker won’t shoot, what can I do?


Test the different systems of the marker-

First, press and hold the power button on the marker to turn the marker on. The OLED display should turn on. The display will show the battery level of the marker, the current eye status, fire mode and max rate of fire. If the battery level does not read full, replace the battery with a high quality name brand 9V. If the eye shows “blocked”, clear the breach and clean the eyes if necessary. Consult your user manual for instructions on how to toggle between "eyes ON" and "eyes OFF".

Example: for software Frenzy5.21b- pull and hold trigger for 5 seconds to toggle eyes "OFF". Pull and hold trigger for 2 seconds to toggle eyes "ON".

Second, confirm that your air tank has adequate air to cycle the gun. If there is any question, just refill your tank to the appropriate capacity.  Confirm that the tank is screwed all the way into the ASA and then tighten the ASA knob (hand-tighten only) until it stops. The marker should make a sound as air travels from the tank into the marker. At this time, you can test the marker by toggling the eyes to “eyes OFF” and pulling the trigger. The marker should cycle without paintballs in the “eyes OFF” setting.

Third, if the marker has passed step 1 and 2, it is time to test the marker with your loader attached. Be sure you are in a safe area to shoot your marker. Be sure you and the people within range are wearing approved paintball eye protection. Toggle the eyes back to the “eyes ON” setting.  The marker should be ready to shoot paintballs. Before attaching your motorized loader to the marker, test the loader to be sure it has adequate battery power and that it feeds paintballs without jams. Attach the loader to the marker. Double check the eye setting to confirm it is “eyes ON”.  Once you have the loader attached, you can test fire the marker again. Be sure you are in a safe area to shoot your marker. Be sure you and the people within range are wearing approved paintball eye protection.

My OLED screen won’t light up when I press and hold the power button….


To safely test the OLED screen on the marker, remove the air source, barrel and loader from the marker. Be sure to remove all paintballs from the breech area.  Start by using a fresh 9V battery to eliminate the possibility of a battery failure. Once you have replaced the battery, press and hold the power button for 2 seconds. If the OLED screen does not light up, you can test to see if the marker is on by blocking and unblocking the eyes and listening for the solenoid click. If the eyes are blocked and the solenoid makes a clicking sound when you pull the trigger, then the OLED screen may need to be replaced. If you go through these steps with the marker and the solenoid doesn’t make a clicking sound, you may have to take your marker to an authorized repair center for inspection/ repair or send it back to the F1 Factory Service Center. Information for that process can be found by clicking here: Factory Service Center

What can I do to get better chronograph consistency with my marker?


There are a few factors that play a major role in the chronograph speed and consistency of your marker. We will go over a few here that can help improve the chronograph performance of your marker.

Overall paintball quality and consistency- this has less to do with your marker and more to do with the quality of paintballs you are shooting. This is possibly the biggest factor when it comes to chronograph consistency. Paintball size, weight and shape(roundness) will all have a dramatic effect on how each paintball fires from your marker. The more consistent each paintball is in size, weight and shape(roundness), the better your chronograph performance should be. Most major paintball manufacturing companies will offer various grades of paintballs at different prices. Generally, as the grade improves, consistency in size, weight and shape(roundness) should also improve, along with fill and shell quality. Because there is no industry standard set for paintball grade, you kind of have to go off of the manufacturer’s grade or better yet, get some advice from a knowledgeable staff person at a paintball store or field. Temperature and humidity will affect the quality of your paintballs- keep them protected from the elements when possible.

Paintball size to barrel bore size- this factor has been a subject for debate for a long time. What isn’t up for debate is this general rule: if the paintball is looser in the barrel bore, you will have less velocity than if the paintball is tighter in the barrel bore (more of the air pressure that is used to push the paintball out of the barrel is wasted by escaping around the paintball before it leaves the barrel). There are other factors that will impact overall performance of your paint and marker but we will stick to chronograph performance for now.  A simple method to determine a bore size match to paint size match is here:

1. Remove barrel from marker.

2. Drop a paintball into the barrel (back).

3. The paintball should suspend itself at the beginning of the barrel.

4. Any amount of force to the paintball should free the paintball to move through the barrel.

A barrel that is too tight will increase the chance of breaking the paintball as it is fired from the marker. A barrel that is too loose will cause the marker to lose air efficiency and chronograph speed and may allow the ball to roll out of the barrel in closed bolt systems(Pump Guns).

Engine/ Regulator/ Battery Maintenance- Paintball markers work using a series of chambers and seals that move air from one area to the next until ultimately, the air reaches the paintball and pushes it out of the barrel. Regular maintenance on your Engine and Regulator can help to ensure consistent operation which will help with consistent chronograph speeds. Lubing your marker on a schedule recommended by the manufacturer and replacing your battery on a consistent basis will help to keep your marker running at a high level of performance. For markers that run on dual pressure (have LPR and HPR adjustments), make a habit of pressure testing your marker each day before you head to the chronograph station.

I don’t feel like I am mechanically inclined- where can I go for help with my paintball marker?


The first place to start is at your local paintball store or field. Making a quick phone call to the local stores in your area will let you know if anybody offers repair/servicing for your particular marker. You may have to drop off your marker to have it serviced but you should be able to get a detailed explanation of the service provided when you pick it up.  Keep in mind that learning how to test and service your equipment is part of becoming a well-rounded player and can turn a short and frustrating day at the paintball field into a fulfilling and enriching paintball experience for you and your paintball buddies- It can also save you a lot of time and money!  Learning the basics of your equipment is essential in keeping everything working at an optimal level.  If you can’t get the help you need at the local shop or field, feel free to contact the manufacturer to get your questions answered.  If you own a Field One Paintball Marker and would like to send it to the F1 Factory Service Center, please click HERE for information and to submit your RMA request.

How do I know if the eyes in my paintball marker are working properly?


“Break-beam” electronic eyes have become a standard in today’s high end paintball markers. Electronic eyes allow the user to pull the trigger as fast as they can without risking “chopping” a paintball with the bolt as it moves forward. Electronic eyes will only allow the marker to process a shot if something is “breaking the beam” between them. This function allows for increased rates of fire and less broken paint and will allow the user to “max out” the rate of fire of whichever electronic loader they are using. Proper electronic eye function is essential for fast rates of fire. To check your electronic eye function, most manufacturers have an indicator for your eye function on the OLED screen. Usually, the indicator will tell you: “eyes ON”, “eyes OFF”, “ball in breech(ready to fire)” or “eyes blocked(eye malfunction)”. To test whether your eyes are functioning, you can shoot your marker without the loader attached.  Be sure you are in a safe area to shoot your marker. Be sure you and the people within range are wearing approved paintball eye protection. Do not stick your finger in the breech of your paintball marker. Remove the loader from your marker and clear the breech, barrel and feedneck of paintballs and any debris. Confirm that the OLED screen indicates “eyes ON”. It should NOT read “ball in breech(ready to fire)”. Pull the trigger once- the gun should not cycle. Now you can place a paintball in the breech of the marker. Keep the marker pointed in a safe direction. The OLED screen should now indicate “ball in breech(ready to fire)”. When you pull the trigger now, the marker should fire the paintball that is sitting in the breech. If you pull the trigger again (empty breech), the marker should not fire. Use this test as many times as you need to feel confident in the electronic eye operation of the marker. Be sure you are in a safe area to shoot your marker. Be sure you and the people within range are wearing approved paintball eye protection.


This page will continually be updated with more technician tips and advice. If you have any questions regarding the information above or would like to receive some advice on a different technical matter, please email us: