AR sounds like a box of springs.....

[LngRngShtr]

I was always told :

 

when the SPROING stops that's your clue to reload and proceed

 

or that something has gone horribly wrong in the feed cycle and needs attention

 

 

sort of like the PING in an M-1  I have come to know and love it    like the hum of airplane engines or the buzzing of a quirky bilge pump

 

I guess we all have different opinions of a "happy noise"

[timthetoolman]

My Colt LE is nice and quiet, but I recently put a blackout together and I can't stand the sound! The buffer tube machine lines rake the spring and I may try polishing them out to knock the sound down a bit. Compared to my colt it sounds like a peice of junk right now. Edited October 5, 2013 by timthetoolman