[ARCHIVED THREAD] - L-M marking

Posted: 1/15/2008 7:06:30 PM EDT

this may not be the right forum for this, but what is Martin Marietta Mfg. ? I was told that the L-M markings on my upper is their forge code. Any idea of dates of manu.? It is an A-1 with FA and no shell deflector. Looks good with my Commando pencil barrel upper.

Posted: 1/16/2008 5:05:11 AM EDT

[#1]

LM = LAR / Martin Marietta

LAR manufacturing

this info is from a list of AR15 upper forge codes I copied from somewhere, so I can't guarantee the accuracy.

Posted: 1/16/2008 5:27:44 AM EDT

[#2]

L-M forge code uppers were from a spare parts contract. mid to late 70's production.

Posted: 1/16/2008 5:44:39 AM EDT

[#3]

just picked up a colt a2
the guy said it was all colt and the lower is colt and the barrei is marked colt but the upper is stamped L M.
did i get took/lied to?

Posted: 1/16/2008 6:30:13 AM EDT

[#4]

Quoted:
just picked up a colt a2
the guy said it was all colt and the lower is colt and the barrei is marked colt but the upper is stamped L M.
did i get took/lied to?

Yep.

Posted: 1/16/2008 6:58:57 PM EDT

[#5]

Quoted:
just picked up a colt a2
the guy said it was all colt and the lower is colt and the barrei is marked colt but the upper is stamped L M.
did i get took/lied to?

If it has L M on the upper, it's not a Colt. Somebody has some splaining to do........

Posted: 1/16/2008 7:07:32 PM EDT

[#6]

Quoted:
L-M forge code uppers were from a spare parts contract. mid to late 70's production.

Ok, thanks, just what I needed. Seems like a good receiver.

Posted: 1/16/2008 7:08:09 PM EDT

[#7]

Quoted:
LM = LAR / Martin Marietta

LAR manufacturing

this info is from a list of AR15 upper forge codes I copied from somewhere, so I can't guarantee the accuracy.

Cool. thanks

[ARCHIVED THREAD] - L-M marking

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[ARCHIVED THREAD] - L-M marking

[ARCHIVED THREAD] - L-M marking