I'm getting a Bushmaster too! I haven't gotten to shoot it yet but it seems pretty awesome. But .223s are SO loud people in China call to complain. You can't shoot a gun like that as often as a .22 or even a 12 Gauge, (which I shoot both often) because it is about ten times louder. Same with 7.62x39mm rounds. I shot an SKS and I could hear the echo through my earmuffs.
I remember I fired three rounds from an AR-15 on a firing range once without ear plugs and it took me ten seconds before I could hear more than ringing.
BTW, I'll grab a shot of the M4A3 when I put the original forend back on and of course, purchase it (it's sitting at my grandparents house right now as my dad and the guy work it out.
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