I have a Rock River Arm complete lower,and i'm looking to buy a complete upper,and i want to know if CMMG are good stuff or not.
Thanks

Do you think it's possible to fit the rock river lower with the cmmg upper.
Thanks Questar, i will buy a cmmg complete upper 16inches barrel in afew minutes
Don't buy ONE single AR from Questar
Buy TWO of them!
and his mags.....and all those sweet Sigs....That is the problem with Questar...You go to their site and find all the good stuff.....and don't have enough cash to buy it all!!!
I love that 11.5" piston upper.....and his mags.....and all those sweet Sigs....
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I believe it's a 7.5" 9mm upper
Will you get dedicated 9mm lowers? or just 9mm adaptors?
Is the 14.5 upper a piston system? Are all CMMG? Just curious?
Also is CMMG an US company?
CMMG uses mil spec buffer tubes correct?
TDC




























