![]() It is generally agreed that high torque motors are quieter than normal motors, but these are also more expensive, so you won’t find them in most AEGs. ![]() The thump is heard when the piston hits the cylinder head.ĪEG motors can have different sounds as they come in a variety of shapes and power outputs. Most of the sound comes from the electric motor spinning the 3 cogs in the gearbox. If you’ve never heard an AEG before, you shouldn’t expect anything too realistic, as they usually make a whining sound, followed by a small thump. AEG noise levelsĪs mentioned above, AEGs are louder than spring guns, as they have more moving parts and can develop higher power output. The noise a springer makes is around 95 dB, depending on the power of the spring and the materials used in the piston assembly. When the trigger is pulled, the spring pushes forward a piston that compresses air which propels the BB out of the barrel. These guns need to be cocked after each shot, compressing the spring. They tend to have lower power output than electric or gas guns and fewer moving parts, which makes their operation less loud. Spring powered airsoft replicas are generally the quietest. In addition, I’ve added a few tips for making your airsoft gun quieter (or louder) if that is what you are here for. Each one has a distinctive sound, so you could probably tell what gun a player you encounter on the field is using. These have been sorted according to the power source – spring, electric or gas. The paragraphs below will cover the difference in sound between the main types of airsoft replicas. As I am not very good at the technical side, I couldn’t tell you which gearbox has lower operating sound, but it probably varies from manufacturer to manufacturer. Another thing to keep in mind is that AK replicas use Version 3 gearboxes, while M4s use a Version 2 gearbox. The M4 has a slight whine when fired, probably coming from the motor. Cyma CM.076A AK – 98 dB – the gun is brand new, never used in a game, using a 9.6 V NiMH battery.īoth AKs shoot a little hot and the prevalent noise seems to come from the cylinder head.Cyma CM.077D AK – 96 dB – the gun has had the motor replaced and the gearbox has been shimmed, using a 9.6 V NiMH battery.Specna Arms S04 Edge Series M4 – 95 dB – the gun is stock and uses a 7.4 V LiPo battery.The measuring was done inside a small room I use for storage, so the results may not be entirely accurate. Using such an app I measured the three AEGs I currently own. A cheaper alternative (maybe even free) would be to just install a sound meter app on your smartphone as that can offer a pretty good idea on how loud your airsoft gun is. If you do want one, you can probably get a good model for around 22$ on Amazon (affiliate link). However, not everyone has such a device lying around the house and getting one just for airsoft purposes probably doesn’t make much sense. The obvious way of measuring the sound of an airsoft gun is by using a decibel meter. Measuring the sound of an airsoft replica This, of course, can vary depending on the type of firearm and the caliber, but it is definitely louder than an airsoft replica. A regular firearm emits something like 140 dB. To put this into perspective, your ears would experience pain at around 125 dB, while at noise above 180 dB your hearing tissue begins to die. As mentioned before, an airsoft replica is probably around 90-100 dB when fired. With the rough figures out of the way, we can now check out some specifics for noise levels. Gas and HPA powered guns are loudest at around 99 dB, AEGs are a bit quieter at around 95 dB, while springers get around 84 dB. In this range, they are safe to use even without hearing protection. Based on the firing mechanism, some replicas are louder than others. Let’s take a look at some numbers to see exactly how loud airsoft guns are.Īirsoft guns are as loud as a regular TV program, which is around 90-95 decibels (dB). Needless to say, more expensive guns tend to have higher quality parts, which are put together with lower tolerances and this makes them quieter. Second of all, the quality of the gun should be considered, as it can have an impact on how quiet or loud the replica functions. First of all, you need to take into account the type of replica you are dealing with, meaning how it is powered – spring, electric or gas, as each of these has its specific operating noise. If you’ve been wondering about the noise output of airsoft replicas, you need to know a bit about the factors which influence the sound.
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