How to Load CO2 Into an Airsoft Pistol

How to Load CO2 Into an Airsoft Pistol

Updated November 2020

You’ll eventually give airsoft milsim a try and, like the rest of us, fall in love. I likewise believed that I would only ever play paintball, but after holding an incredibly lifelike airsoft gun for the first time, I realised otherwise. I realised I was addicted. But as any seasoned player will tell you, in this game you really need to be good with a gun. One of the reasons loading CO2 is so crucial is because of this.

However, it’s not only a matter of pointing and shooting even if you do have the best airsoft gun on the market. There are all kinds of mechanics to the proper usage of an airsoft weapon. And some of them are basic and sound simple enough, but you need to learn how to perform them in the beginning nevertheless. For example – how would you load CO2 into your airsoft pistol?

Don’t worry, loading a CO2 bb pistol is not a difficult process; we’ll explain everything you need to know right here. Lock and load then, and get your airsoft gun ready to do the same!

Best Airsoft Pistols

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Airsoft Pistol Parts

You must be familiar with all the complex mechanisms an airsoft handgun contains before you can begin to insert CO2 cartridges into your gun. Fortunately for you, the majority of these pistols—external accessories aside—have the same fundamental internal components. As a result, understanding how everything operates is made simple because, after seeing one internal mechanism, you have seen them all.

With that in mind, you should know that all of these pistols have a spring that’s used to power the weapon. And this is precisely the part that determines how quickly your BBs will be launched out of the gun’s barrel. Apart from that, the other main parts are:

  • Gears
  • Air Nozzle
  • Cylinder Head
  • Piston Head
  • Piston
  • Cylinder
  • Motor

The engine indicated above is the throbbing heart of your airsoft gun. This particular component is the one you’ll want to enhance if you want your pistol to perform better.

The pistol’s magazine will be filled with your ammunition. After that, you put the magazine into the actual rifle. All that’s left to do is squeeze the trigger after this process is finished, and your BBs will start shooting at your target in either semi-auto or auto-style, depending on your gun and preferences.

Loading Basics

How do I fill a CO2 bb gun? Of course, no matter how thoroughly you demonstrate your understanding of the gun’s internal workings, you won’t be able to fire if the CO2 isn’t loaded correctly. Additionally, a CO2 magazine that has been improperly loaded may also be harmful.

We will thus provide you with a set of guidelines to follow while inserting the CO2 canister into the handgun. But first, make sure the tank you bought is compatible with your airsoft pistol. Upon being certain of that:

  1. Begin with a pistol that’s empty, and without a loaded magazine inside.
  2. Turn the safety switch on, so that you’re completely secure while loading it.
  3. Inspect the base of the gun, and you’ll find a couple of screws holding a plate in place. Unscrew them carefully, and put them somewhere where you won’t misplace them during this process. They’re generally incredibly small and easy to lose.
  4. If there is a previous tank of CO2 present in the pistol, take it out.
  5. Now that you’ve got an empty slot, push the CO2 tank inside, neck-first.
  6. Insert all of the studs and put the grip cover back in place. Be careful while doing this, as you need to be sure that your grip is aligned with the case.
  7. Put the screws back on in order to lock the canister in place, and turn them clockwise. Do so until they’re fully tightened.
  8. Now your airsoft gun is fully loaded and ready to be used on game opponents!

A Couple of Notes

So now that you’ve learnt how to load a bb gun, you know everything there is to know about it. While the safety switch must be on while you’re doing this, as we’ve already indicated, there are a few additional factors to take into account for user safety.

For instance, before starting to put your CO2 tank inside the handgun, you must be assured that all BBs and the magazine have been removed. Failure to do so could result in stray BBs flying around accidentally, endangering you or nearby people.

Additionally, you must exercise extreme caution when working with the CO2 tank. Wear the appropriate safety gear to protect your eyes and minimise potential harm. Additionally, make sure the CO2 tank is totally empty before replacing it. Otherwise, you run the risk of suffering severe injury from gas that is still present.

Only attempt to install a CO2 tank that is certain to fit your gun; do not attempt to make any DIY modifications in this regard, as we have already explained. Other than that, properly get rid of any remaining CO2 cartridges when you’re through. Perhaps most significantly, we advise making sure you have all the tools necessary to complete this task safely and promptly before you start.

Understanding everything about the loading procedure is just as crucial as knowing everything about your personal safety while using a CO2 shotgun airsoft.


You now possess the theoretical understanding necessary to correctly change a CO2 canister in your airsoft gun and to handle it carefully and safely. In order to make this process as efficient and secure as possible, it’s also crucial to understand how the gun works.

All that is left to do at this point is to follow the instructions we have provided while always keeping safety in mind. You and your friends will soon be charging across the airsoft field and having a blast!

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