i find that some motors can be really loud while others are almost completely quiet.
TM motors are ok. ICS, VFC, G&P and CA motors seem to be the loudest. the systema motors so far have been the quietest motors i have used, and i use a Systema Magnum in my AEG. my VFC 416 has been tuned heavily, and it's often mistaken for a PTW until someone walks up to have a closer look. i would dare say that it's quieter than a PTW.
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Weapons Technician / Gunsmith
Don't look at me, I don't know, lol ¯\(°_o)/¯.
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