How to Fix a Paintball Gun That Won’t Shoot?

Paintball guns are one of the essential accessories for playing paintball. They use compressed gas to power the balls. They need to be in top condition if you want to enjoy your game to the maximum. However, it may occur that your gun is not shooting or won’t work. Some of the most common problems with paintball guns include filling the CO2 tank with the wrong gas, using older paintballs, pumping too slowly when loading the gun, problems with magazine retention, or cleaning issues.

How to Fix a Paintball Gun That Won’t Shoot?

Paintball guns are surprisingly complicated. But there are a few basic steps you can use to diagnose and fix virtually any gun problem. In this article, we’ll go over some of the most common reasons your paintball gun might not work and explain how to fix each one.

8 Most Common Problems with Paintball Guns

Before we get into the specific problems, it’s important to know that all paintball guns are different. The steps listed below will work for most guns, but not all of them. If you have an older model or one with a unique design, then these instructions may not apply directly.

Compressed air shortage

If you’re having trouble firing your paintball gun, it’s likely that there is a problem with the compressed air. There could be a lack of pressure in the tank or a leak in the CO2 line. The easiest way to check if this is the issue is to look at your gauge on the paintball marker and see if it’s reading zero. If it isn’t, then you have a leak somewhere and will need to locate it before proceeding further.

Breakdown of paintballs

Another common issue that happens when playing paintball games is breakdowns in paintballs. This will cause them to break apart while shooting and cause them not to shoot straight or possibly even break apart before leaving the barrel of the gun!

Dirty Barrels 

A common problem with paintball guns is having dirt inside of them. Especially in the barrel where it is hard to reach. This can happen because you are not cleaning out your gun after each use, or maybe because you have been playing on an outdoor field and there was dirt everywhere!

Paintballs leaking

Another common problem that happens when you are playing paintball is having paintballs leak out of your gun. This can happen because you are using cheap paintballs, which are not made as well as good quality ones. Another reason why this happens is if there is too much air pressure inside of your barrel and it causes the balls to be pushed out!

Size error in paintballs

This is a common problem that happens when you are playing paintball. A size error in paintballs means that the balls are slightly larger or smaller than the standard size of a paintball, which causes them not to fit properly into your gun. If they are too small they won’t go into your barrel and if they are too large it makes it harder for them to travel down the barrel where they need to go!

Too Dry Paintballs

Another reason why your gun might not be shooting is if your paintballs are too dry. If they are too dry, then they won’t fit properly into your barrel and won’t shoot out of it, so make sure you keep them in a cool place and don’t leave them out for too long! Also, remember that water can damage paintballs as well, so try not to get them wet!

Wrong CO2 Cartridge

If you have a CO2 paintball gun, then you need to make sure that you are using the right size of the CO2 cartridge. If it is too small then it will not work properly because there won’t be enough pressure in the gun, while if it is too large then it will cause damage and could even break your barrel!

O-rings Damaged

If your paintball gun issue is leaking, then there could be a problem with the O-rings. These are small circular rings that sit between two parts of your gun and keep them together, but if they are damaged then they won’t work properly. If you notice that there is leakage from your barrel or magazine, then it is likely that one of these needs replacing!

How to Shoot and Aim a Paintball Gun Accurately | Complete Guide

How to Fix a Paintball Gun That Won’t Shoot: 8 Effective Solutions

Paintball guns are the most important piece of equipment for any paintball player. It’s what allows you to hit your opponents and win games, so it’s important to keep you in good condition! Here are a few troubleshooting tips and guides on how to repair paintball gun or how to fix a paintball gun that won’t shoot?

How to Fix a Paintball Gun That Won’t Shoot?

Check the Air Pressure

If you’re using CO2-powered paintball guns, the first thing you should do is check the air pressure in your tank. In case it’s too low, there won’t be enough pressure to push the ball out of the barrel. If this happens, you need to add more CO2 to your tank before trying anything else.

Test Your Paintballs

If you don’t have any problems with your tank, then you may have some bad paintballs in your hopper. Check them all by rolling them around inside their tubes and looking at them from the side until you find one that doesn’t roll freely or look flat on one side; these ones should be replaced immediately because they won’t work properly in your gun.

Make sure the barrel is clean

The main thing you should do when your marker won’t shoot is to make sure that all the paintballs are out of the barrel. If there are still some balls in there, they could be obstructing the path of air from the tank and preventing it from reaching the marker. You can also check for obstructions in your barrel by holding it up next to a light source and looking down through it. If you see any imperfections or cracks in your barrel, you’ll know that you need to replace it immediately.

Paintball Hopper Cleaning

Make sure that you’ve cleaned out any debris from inside your hopper before trying to use it again; otherwise, it may not feed balls into your gun properly. It’s also important that any parts of your hopper that come into contact with paintballs (such as rubber o-rings) are kept clean as well so that they don’t contaminate them and cause jams or other problems during playtime.

Velocity should be adjusted

In order to determine if your paintball weapon or gun is shooting correctly, you need to make sure that the velocity is adjusted correctly. You can do this by using a chronograph or a chronograph app on your phone. The optimal velocity is between 280 and 300 feet per second (fps). If you are shooting above or below that range, then you need to adjust it accordingly.

Replacement of worn or damaged parts

One of the main things you should do when your paintball gun doesn’t shoot is to replace worn or damaged parts. Check if there is anything missing or broken on your markers, such as a barrel or a feeder spring. If so, replace them immediately so that you can be able to use the marker properly again.

Tank O-rings should be checked

One of the most common reasons why paintball guns are broken to shoot properly is because there are leaks in the tank system or regulator. This can be easily fixed by simply replacing the O-rings inside the tank and regulator. You just have to purchase some new ones from any local store that sells paintball supplies and install them yourself using a screwdriver and pliers if necessary.

System leaks should be checked

If you have an electric marker or pump marker, then it’s possible that there is a leak somewhere in your system which could prevent it from firing correctly or even at all! You’ll want to check all connections thoroughly for signs of wear or damage before trying anything else.

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Tips and Advice for Maintaining Paintball Guns

Tips and Advice for Maintaining Paintball Guns

Here are some tips and advice for maintaining a paintball match:

Keep your barrel clean

A dirty barrel can affect the accuracy of your shots, so it’s important to make sure it’s properly cleaned after every use. You can do this by running a dry patch through the barrel, then applying some lubricant.

Clean your loader regularly –

Loaders are one of the most important parts of any paintball gun since they load paintballs into the hopper.

Clean your hopper regularly as well

It should be cleaned after every use as well (sometimes more frequently).

Wipe down your marker

with a soft cloth and some soap and water after each day of playing paintball. This will prevent build-up on your marker that can reduce its performance.

Inspect all parts of the gun before using it

look for cracks or broken pieces, especially on older models. If there are any problems with parts of the gun, have them replaced by a professional before using them again.

Clean all parts of the gun thoroughly after using it

especially if there was mud or dirt on them during playtime. Dirt can cause friction between moving parts which could lead to wear and tear over time.

Always replace broken O-rings immediately

these rubber rings seal holes in your marker’s body so that dirt doesn’t get inside and damage internal components.


How do you unclog a paintball gun?

First, you should check to see if the barrel is clean. If it’s not, use a cleaning rod and brush to clean out any dirt or debris. If there’s still some blocking the barrel of your gun, then you can try using compressed air to blow out anything that may be stuck.

How do you cock a paintball gun?

Cocking your paintball gun is very simple: just pull back on the cocking handle until it locks into place. You’ll know it’s locked when you can no longer move it.

How many rounds can a paintball gun shoot?

Depends on how fast you can pull the trigger! However, most semi-automatic paintball guns will fire about 20 shots per second (up to 25). It means about 200 rounds per minute or 6000 rounds per hour! Some higher-end electro-pneumatic markers can even get up to 30+ bps (balls per second).

Final Words

Hopefully, we’ve given you enough information about what might cause your marker not to shoot and what you can do about it. While it’s certainly possible that your marker is broken beyond repair and needs to be sent to the factory for repair or replaced. It’s far more likely that the problem is relatively minor. 

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