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Posted: 9/12/2010 7:14:12 PM EDT
[#1]
Found this list:
AR 15 Upper Markings 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 Circle/Crosshairs w/"AR" = ArmaLite CK = Colt / Kaiser Aluminum 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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Posted: 9/12/2010 11:33:20 PM EDT
[#2]
Try this list
LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal’s head (stylized bird head) is: Cardinal Forge CH is: Colt Harvey Aluminum Crosshairs in a circle w/"AR" is: ArmaLite CK is: Colt / Kaiser Aluminum CM is: Colt / Martin Marietta D (stylized) is: Diemaco DK is: Diemaco / Kaiser Aluminum E is: Emco EK is: EMCO/Kaiser E MB is: EMCO/Mueller Brass FA is: FNMI / Anchor Harvey FK is: FNMI / Kaiser Aluminum FM is: FN/Martin Marietta FMB is: FNMI / Mueller Brass LK is: LAR / Kaiser Aluminum [FN] LM is: LAR / Martin Marietta M "diamond" is: Mueller Industries PA is: Capco? / Anchor Harvey [Elisco?] PM is: Capco? / Martin Marietta [Elisco (Armalite) for the Philippine military] Square (symbol) is: Brass Aluminum Forging |
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Posted: 9/13/2010 4:34:43 AM EDT
[#3]
Just K was for Kaiser Aluminum. Unknown who machined/finished/sold them.
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Posted: 9/13/2010 5:34:31 AM EDT
[#4]
Quoted:
Is there any list of forge marks available to identify who made an upper? For instance I have an upper with a circle divided in to 4 pieces some what like a pie with the top left piece missing and an the letters AR to the right of the circle.. Armalite. |
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Posted: 9/13/2010 5:47:17 AM EDT
[#5]
Quoted:
Quoted:
Is there any list of forge marks available to identify who made an upper? For instance I have an upper with a circle divided in to 4 pieces some what like a pie with the top left piece missing and an the letters AR to the right of the circle.. Armalite. +1. ArmaLite forge marking. 
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Posted: 9/13/2010 3:54:59 PM EDT
[#6]
Great stuff guy's!, plinker thats the upper I have with the assist problem. So I guess I built an AR with a TM lower, Armalite upper, FN barrel with a Bushmaster BCG....... Fraken GUN! I love it.
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Posted: 9/13/2010 4:36:06 PM EDT
[#7]
Quoted:
Try this list LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal’s head (stylized bird head) is: Cardinal Forge CH is: Colt Harvey Aluminum Crosshairs in a circle w/"AR" is: ArmaLite CK is: Colt / Kaiser Aluminum CM is: Colt / Martin Marietta D (stylized) is: Diemaco DK is: Diemaco / Kaiser Aluminum E is: Emco EK is: EMCO/Kaiser E MB is: EMCO/Mueller Brass FA is: FNMI / Anchor Harvey FK is: FNMI / Kaiser Aluminum FM is: FN/Martin Marietta FMB is: FNMI / Mueller Brass LK is: LAR / Kaiser Aluminum [FN] LM is: LAR / Martin Marietta M "diamond" is: Mueller Industries PA is: Capco? / Anchor Harvey [Elisco?] PM is: Capco? / Martin Marietta [Elisco (Armalite) for the Philippine military] Square (symbol) is: Brass Aluminum Forging My Defender 2000 LMT M4 has the cardinal forge mark and LMT logo. Came right from there factory 
I also have a LMT upper with just the LMT logo I bought from Paul back in 05 |
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