housemartins Posted December 1, 2016 Report Share Posted December 1, 2016 On say an M4 type, has anyone actually taken any measurements? The motor? The gearbox? The muzzle? Link to post Share on other sites
RSM Posted December 1, 2016 Report Share Posted December 1, 2016 Motor whine, gear chatter, piston slap, muzzle 'pop'. In that order. Obviously with your head being closer to the gearbox you will perceive the gearbox being louder than someone who is a few feet down range. Link to post Share on other sites
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