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Old 02-04-2015, 22:33   #6
SF0
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Join Date: Aug 2005
Location: NM
Posts: 207
I use an AAC M4-2000 Mod 8 on an 11.5" 5.56 AR. Outdoors with Federal XM193, it doesn't require any earpro. To my ears, it isn't much louder than smacking something sharply with a hammer.
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