The hip fire upgrade says This weapon has bonus accuracy while firing from the hip.
To me that sounds like just shooting w/o ADS but destiny wiki says it Increases weapon accuracy when firing while crouched. 
So what does it really do?
						
					
					
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	Makes it so your shots don't curve as much when firing from the hip don't listen to chap. I have it on my TLW
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	3 Repliestightens crosshairs