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correct Buffer weight for CMMG MK9
Hi,
my new CMMG MK9 Lower for my RRA 9mm Upper has just arrived.
Maybe you can tell me from your experiance what the correct buffer weight is?
Is the installed buffer already the right one, or does it need modifications (weight)?
thx, Duffy (the only) Duck :-)
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I have run a cmmg 9mm lower on a couple of different barrel length pistol uppers with no problems. my experience is good to goAttachment 42764
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My CMMG MK9 complete lower came with a 5.5oz buffer weight - this runs fine with a Model 1 Sales upper.
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