AR Upper markings

[echo4lima]

So from what I can ascertain, my upper is: "Diemaco CBQ upper. Exremely rare. Has the D marked A3 upper with T rail marks. Comes with a very unusual COLT 11.5" commando HEAVY barrel. 1/7 twist.

Am i correct?

 

[Leviathan024]

Very cool!

 

[enefgee]

Nice Upper, someone on here was selling the lower to go with that. Incidentally, that's what makes CC/Diemaco different from other AR's - all parts come from one supplier, CC/Diemaco

 

[A.T.R.]

I believe the other marking is Anchor Harvey forge.

Nice.

 

[strider007]

Pretty sweet man...that one's a keeper for sure...

 

[strider007]

Here's a quick cut and paste from the interweb. These are some of the various forge markings that one will find on upper and lower receivers:

A (splintered) = Anchor Harvey Aluminum

AF = Alcoa Forge

C AF = Colt Alco Forge

C MB = Colt / Mueller Brass

Cardinal Head (stylized) = Cardinal Forge

CH = Colt Harvey Aluminum

CK = Colt / Kaiser Aluminum

Circle/Crosshairs 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

Offset Square = Brass Aluminum Forging

PA = Capco / Anchor Harvey

PM = Capco / Martin Marietta

Square (symbol) = Brass Aluminum

 

[echo4lima]

Barrel Markings

So had a few questions asked about the barrel...

 

[echo4lima]

Think I am happy with recent add-ons....furniture upgrades

Diemaco CQB upper, 11.5" barrel, 1/7"
Ambi Charging handle
EoTech XPS3
Aim point 3x Magnifier
Inforce light
Troy Ind Di-Optic Folding rear sight
Vortex G6A2-D Sound Suppressor Capable Flash Eliminator
FAB Defense Quad rail

North Eastern Arms Lower
Magpul ACS-L
Magpul MIAD
Magpul AFG
Tactical Link Infidel single point sling

 

[yohann160]

Diemaco Cold Hammer Forged barrel?

 

[ChrisAlston]

That's pretty cool man, nice buy.

 

[echo4lima]

The upper I have had for years... I just recently added the NEA lower and some other tweaks..been busy with other stuff last few years, less emphasis on toys. I recently found a posting on another AR forum that got me interested in researching...