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MINUTEMAN15
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Posted: 9/30/2008 12:26:17 PM
Can anyone tell me a link to a list of stamp codes on upper recievers and what they mean. I don't know howmany there are but I know I have two different ones and I was just curious to what the meaning is.
thanks
psychotr
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Posted: 9/30/2008 12:41:47 PM
There's one that looks like a stylized head of a cardinal (the bird). It's for cardinal forge company. That's the only one I know.
mr_wilson
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Posted: 9/30/2008 12:44:22 PM
[Last Edit: 9/30/2008 12:45:15 PM by mr_wilson]
The old www.biggerhammer.net web-site has a good run-down on most of the older more established uppers - check the AR15 section "uppers"......

mike

eta - direct link: www.biggerhammer.net/ar15/uppers/
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warpig8654
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Posted: 9/30/2008 1:01:12 PM

Originally Posted By MINUTEMAN15:
Can anyone tell me a link to a list of stamp codes on upper recievers and what they mean. I don't know howmany there are but I know I have two different ones and I was just curious to what the meaning is.
thanks



A (splintered) = Anchor Harvey Aluminum

AF = Alcoa Forge

C AF = Colt Alco Forge

C MB = Colt / Mueller Brass

Cardinal (stylized) = Cardinal Forge

CH = Colt Harvey Aluminum

CK = Colt / Kaiser Aluminum

Circle/Crooshairs w/"AR" = ArmaLite

CM = Colt / Martin Marietta

D (stylized) = Diemaco

DK = Diemaco / Kaiser Aluminum

E = Emco

EK = EMCO/Kaiser

E MB = EMCO/Mueller Brass

F keyhole = FNMI / Cerro Forge

FA = FNMI / Anchor Harvey

FK = FNMI / Kaiser Aluminum

FM = FN/Martin Marietta

FMB = FNMI / Mueller Brass

Keyhole = Cerro Forge

L = Lewis Machine & Tool

LK = LAR / Kaiser Aluminum

LM = LAR / Martin Marietta

M (under diamond) = Mueller Industries

PA = Capco / Anchor Harvey

PM = Capco / Martin Marietta

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smitty12b
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Posted: 10/21/2008 9:08:10 PM
I have one marked c h which means colt harvey. Now what does colt harvey mean on a scale of 1-10 (1=bad) I have no clue.,thanks


height=8
Originally Posted By warpig8654:
height=8
Originally Posted By MINUTEMAN15:
Can anyone tell me a link to a list of stamp codes on upper recievers and what they mean. I don't know howmany there are but I know I have two different ones and I was just curious to what the meaning is.
thanks



A (splintered) = Anchor Harvey Aluminum

AF = Alcoa Forge

C AF = Colt Alco Forge

C MB = Colt / Mueller Brass

Cardinal (stylized) = Cardinal Forge

CH = Colt Harvey Aluminum

CK = Colt / Kaiser Aluminum

Circle/Crooshairs w/"AR" = ArmaLite

CM = Colt / Martin Marietta

D (stylized) = Diemaco

DK = Diemaco / Kaiser Aluminum

E = Emco

EK = EMCO/Kaiser

E MB = EMCO/Mueller Brass

F keyhole = FNMI / Cerro Forge

FA = FNMI / Anchor Harvey

FK = FNMI / Kaiser Aluminum

FM = FN/Martin Marietta

FMB = FNMI / Mueller Brass

Keyhole = Cerro Forge

L = Lewis Machine & Tool

LK = LAR / Kaiser Aluminum

LM = LAR / Martin Marietta

M (under diamond) = Mueller Industries

PA = Capco / Anchor Harvey

PM = Capco / Martin Marietta

warpig8654
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Posted: 10/21/2008 10:57:17 PM

Originally Posted By smitty12b:
I have one marked c h which means colt harvey. Now what does colt harvey mean on a scale of 1-10 (1=bad) I have no clue.,thanks



Originally Posted By warpig8654:

Originally Posted By MINUTEMAN15:
Can anyone tell me a link to a list of stamp codes on upper recievers and what they mean. I don't know howmany there are but I know I have two different ones and I was just curious to what the meaning is.
thanks



A (splintered) = Anchor Harvey Aluminum

AF = Alcoa Forge

C AF = Colt Alco Forge

C MB = Colt / Mueller Brass

Cardinal (stylized) = Cardinal Forge

CH = Colt Harvey Aluminum

CK = Colt / Kaiser Aluminum

Circle/Crooshairs w/"AR" = ArmaLite

CM = Colt / Martin Marietta

D (stylized) = Diemaco

DK = Diemaco / Kaiser Aluminum

E = Emco

EK = EMCO/Kaiser

E MB = EMCO/Mueller Brass

F keyhole = FNMI / Cerro Forge

FA = FNMI / Anchor Harvey

FK = FNMI / Kaiser Aluminum

FM = FN/Martin Marietta

FMB = FNMI / Mueller Brass

Keyhole = Cerro Forge

L = Lewis Machine & Tool

LK = LAR / Kaiser Aluminum

LM = LAR / Martin Marietta

M (under diamond) = Mueller Industries

PA = Capco / Anchor Harvey

PM = Capco / Martin Marietta



It means Harvey Aluminum made the raw forging specifically for Colt. Colt then machined & finished the raw forging into the end product. Very few manufacturers actually machine & finish the raw forgings that they purchase from the various foundries listed.
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smitty12b
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Posted: 10/22/2008 7:46:39 AM
thank you. That I understand.