Quote:
Originally Posted by Filipeanutz
I'm not sure if thats the same gun my friend was talking about but he showed me this new AR called M-6?...i think...
anyway, with that the barrel is interchangeable between 5.56 and 7.62 NATO. Much like how the M240's are. Just twist barrel off and put a different caliber barrel in it. I think the mag can feed 7.62 rounds also
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Maybe his AR is a 300 Blackout, that's a 7.62 round.
When he says interchageable, probably just means he swaps the uppers.
The 300 blackout fits into a standard AR 5.56 magazine.
Only thing different between the 2 AR platforms is the barrel, all other parts are standard AR-15/M4 parts.