View as Grid List
Set Ascending Direction
View as Grid List
Set Ascending Direction

co2 Airsoft SMG

co2 Airsoft SMG (Submachine gun) is an automatic gun that uses smaller magazines, with less firepower than a machine gun, hence the prefix sub. Considering how much tweaking is usually needed with gas guns, maintenance, and let’s not forget co2 capsules, why would you want to use a gas airsoft SMG? 


During World War I was when the submachine guns were developed, which were used as assault weapons for raiding trenches. The first submachine gun was invented in 1918 by John Thompson, that gun is known as the Thompson M1921. Nowadays less and less SMG is being used as they are replaced by modern rifles that have a similar rate of fire, lightweight, and long-distance shooting. SMG is a very powerful gun in a CQB situation, as the high fire rate and small light frame make it deadly. In reality, SMG is still being used by SWAT teams or military special forces as it’s easier to manipulate a pistol caliber size gun and less likely to penetrate. Of course in airsoft, this doesn’t matter as that won’t happen.


As the years go by the SMG has evolved into something known as a PDW (Personal Defense Weapon). These were designed to use high caliber rifle rounds for higher penetration, and very popular in airsoft as they look very badass. Imagine running around a CQB game duel wielding an MP7 just like Snake eyes from G.I Joe, your fellow teammates will be jelly! 


Whilst most assault rifles are widely used by airsofters, SMG is still popular due to how easy it is to handle in CQB games. Not only that but co2 airsoft SMG can be taken down just like its real steel counterpart and serve as a training weapon in preparation for real steel. The weight of these gas airsoft SMG is quite heavy which makes it feel more real. With every pull of the trigger, you can feel the bolt push back into the stock giving a sense of recoil similar of a firearm. This is what an electric airsoft SMG lacks, realism. So this makes gas airsoft SMG a perfect contender for milsim games, CQB, or skirmish games.


co2 airsoft SMG is powered by co2, which makes it cost-effective on your BB’s as each magazine can only hold so many rounds compared to the electric variant. It can also be customized with accessory rails, suppressors, and red dot sights to further enhance your weapon capability.  


What to Look for in a co2 Airsoft SMG?

Aesthetics. Many SMG look so cool who wouldn’t want one in their gun collection. But do keep in mind these types of guns are used mainly in CQB scenarios, so don’t expect to ping your opposition from 60 meters away. Most of the power source is fed into the magazine so every gas airsoft SMG has a different size mag capacity. We also have to consider how gas efficient it is and how much aftermarket parts does it support. But that being said everyone has needs and requirements, some may want to collect co2 airsoft guns or skirmish with them.


What are Some of the Best co2 Airsoft SMGs?

The KWC mini uzi and Umarex Legends MP40 are our top pick for both amateur and expert airsofters alike, as it is skirmish ready with superior accuracy and kicks like a mule. What we like about these two co2 airsoft SMG is that they are 1:1 scale, constructed out of metal, and feels like the real steel counterpart! What’s cool about the MP40 is that it can support two co2 capsules in its mag, meaning you can pew more without changing co2 capsules.


To find out more about these products click the link below.

KWC Mini Uzi:

Umarex Legends MP40:


Are co2 Airsoft SMGs Popular?

In reality, not really as there are not many choices of co2 airsoft SMG unless you’re into classic guns. But it is highly satisfying to shoot as the recoil on these co2 airsoft SMG kick super hard. The majority of airsofters prefer AEG or GBB rifles or pistols as they are more versatile than a co2 SMG.  Whos to stop you from role-playing a soldier from the British trenches or a gangster duel wielding uzis!


How Does a co2 Airsoft SMG Work?

CO2 Airsoft SMG works in a simple manner similar to the gas counterpart, a co2 capsule is stored usually in the magazine. Then a valve inside keeps it from escaping and loaded into the gun. Every trigger you pull strikes the latch which forces pressurized air out at the BB that’s sitting in the hop-up chamber. This will create a rolling motion of the BB inside the inner barrel which eventually makes its way out the barrel towards your target. But co2 does have an advantage over green gas in cooler temperatures as it is more stable due to the high pressure.