Hello, I'm an expert in acoustics and firearms. When it comes to the noise level of a gun with a suppressor, it's important to understand that the decibel (dB) reduction can vary significantly based on the type of firearm, the caliber of the ammunition, and the efficiency of the suppressor itself.

A suppressor, also known as a silencer, is designed to reduce the noise and muzzle flash generated by the firing of a gun. Without a suppressor, a gunshot can range from about 140 to 170 decibels, which is extremely loud and can cause immediate hearing damage.

With a high-quality suppressor, the noise level can be reduced by 20 to 35 decibels. This means that a gunshot that would typically be around 160 decibels without a suppressor might be reduced to approximately 125 to 135 decibels with one. However, it's important to note that even with a suppressor, a gunshot is still very loud and can cause hearing damage if proper hearing protection is not used.

Please remember that while a suppressor can reduce the noise of a firearm, it does not make the gun completely silent as is often depicted in movies. Also, the effectiveness of a suppressor can be influenced by factors such as the design of the firearm, the type of ammunition used, and environmental conditions.

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A 30-decibel reduction in theory means an AR-15 rifle would have a noise equivalent of 132 decibels. That is considered equivalent to a gunshot or a jackhammer. A .22-caliber pistol would be 116 decibels, which is louder than a 100-watt car stereo.read more >>