// GEAR EXPLAINED
AEG vs gas vs spring: which to buy?
Airsoft guns come in three main types, and each fires in a completely different way. Understanding how electric, gas and spring replicas work makes choosing your next one easy.
AEG: automatic electric gun
An AEG uses a rechargeable battery to drive a motor and gearbox, which compresses a spring to fire each shot. Because a motor does the work, an AEG can shoot semi-automatic and full-automatic, hold a decent magazine capacity, and keep going all day on a battery charge.
Pros:
- Reliable and consistent in any weather.
- Semi and full auto, with high-capacity magazines.
- Huge model range and excellent parts and upgrade support.
- Cheap to run: just recharge the battery and buy BBs.
Cons:
- Less realistic feel than a blowback gas gun, no recoil.
- You need to keep batteries charged and looked after.
Gas: green gas, CO2 and HPA
Gas guns use compressed gas, usually green gas or CO2, to fire. Most gas pistols and many gas rifles are "gas blowback" (GBB), meaning the slide or bolt kicks back with each shot for a realistic recoil and cycling action. It is the closest airsoft gets to the feel of a real firearm.
Pros:
- Realistic recoil and cycling, very satisfying to shoot.
- Gas pistols make excellent, true-to-life sidearms.
- No batteries to charge for the gun itself.
Cons:
- Performance drops in the cold, a real factor in a Kiwi winter.
- More expensive to run, you are always buying gas.
- More seals and moving parts, so a bit more maintenance.
Which gas you use makes a real difference to cost and cold-weather performance. We break down green gas, CO2, propane and HPA in our airsoft gas types guide.
Spring: cocked by hand
Spring guns have no battery and no gas. You manually cock the replica before every shot, which compresses the spring, then pull the trigger to fire. That makes them single-shot, but also simple, cheap and completely weatherproof.
Pros:
- Cheapest way in, and nothing to charge or refill.
- Simple and robust, very little to go wrong.
- Spring sniper rifles are a genuinely strong choice for that role.
Cons:
- Single-shot only, you re-cock between every shot.
- Not ideal for fast-paced skirmish play as a primary.
So which should you buy?
- Your first, do-everything gun: an AEG. Reliable, all-weather, endlessly supported.
- A realistic sidearm or a second gun once you are hooked: a gas pistol or GBB rifle.
- A dedicated sniper role or a tight budget: a spring bolt-action.