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Posted: 10/27/2004 5:47:02 AM EDT
[#1]
Does your receiver have two samll cuts that mate up to the feedramps on the barrel extension? If so, you have M4 enhanced feed ramps. colt uppers with the M4 cuts have "M4" stamped into the receiver above the cloverleaf. Some only have the "4", some only the "M". Likely from a stamp operation that was omitted, or a "shortcut".
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Posted: 10/27/2004 6:26:28 AM EDT
[#2]
mine has the m
did not look at the ramps |
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Posted: 10/27/2004 7:14:17 AM EDT
[#3]
Actually if it is just an "M" it is the machine code designating an LAR (Grizzly Arms) product. All their "blemished" uppers had this machine mark (no M4 ramps).....
Does the finish not look like typical anodizing? LAR anodizes then puts a teflon coating over it. You'll be able to tell since its a really smooth finish. |
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Posted: 10/27/2004 2:22:28 PM EDT
[#4]
Oops, My GC has a 4 not a M. I looked again.
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Posted: 10/27/2004 8:49:39 PM EDT
[#5]
Well, this is a brand new CMMG upper and the "M" is above the cloverleaf in the front of receiver above the Delta ring, I should've made that clear. It would sucked badly if this is a high $$$ blems.
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Posted: 10/27/2004 11:02:14 PM EDT
[#6]
My LMT has an M
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Posted: 10/28/2004 12:20:21 AM EDT
[#7]
Perhaps a recevier made by LMT for DPMS?
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