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View Full Version : A1 upper ID Help please.


Salter77
09-24-2010, 12:44 PM
Hello All! I have an A1 milspec upper that I would like help with identifying the manufacturer. It was on a rifle that I purchased with more modern parts that I swapped for another upper. 16" barrel 6" handguards A1 upper. the only distinguishing marks are an L and an M offset under the dial. I don't believe its a Colt from what I have seen, but rather a Sako? I know there were military sub contractors who made them. Any info would be helpful. Let me know if you need more photos. Thanks.

G-forceJunkie
09-24-2010, 7:50 PM
Found this on the net, not sure if it applies to the older A1's:

Forging marks/makers.

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

CHS
09-24-2010, 10:17 PM
Found this on the net, not sure if it applies to the older A1's:

Forging marks/makers.


Those markings are meaningless when trying to identify who made an upper.

bjl333
09-24-2010, 10:42 PM
Anything under the barrel ???

KaTooM
09-24-2010, 10:49 PM
Un leash the Dogs over at the retro forum...they will square you away!

arfcom retro

Salter77
09-27-2010, 2:57 PM
Thanks for your help gentleman!