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Max Online: 16728 @ 03/25/12 08:51 AM
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#6191468 - 02/19/16 08:08 PM Help ID this Upper
aggiehunter03 Online   content
Veteran Tracker

Registered: 11/13/09
Posts: 2470
Loc: Mineral Wells, Texas
Trying to help a friend figure out what upper he has. 300 BO and has this symbol on the receiver.
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#6191525 - 02/19/16 08:58 PM Re: Help ID this Upper [Re: aggiehunter03]
NTRP Offline


Registered: 02/06/09
Posts: 1421
Loc: McKinney, TX By God!
It could be 1 of 1000 generic uppers being made now. Lots of shops doing these on the side. Sorry I don't have your answer but it my just be a nondescript upper.
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North Texas Rifle Precision
Josh (Jay) Ruby
Team Shooter for Short Action Customs and Kahles Optics

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#6191528 - 02/19/16 09:00 PM Re: Help ID this Upper [Re: aggiehunter03]
aggiehunter03 Online   content
Veteran Tracker

Registered: 11/13/09
Posts: 2470
Loc: Mineral Wells, Texas
I thought it kind of resembled the Rainier Arms logo but haven't handled one in person.
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#6191545 - 02/19/16 09:16 PM Re: Help ID this Upper [Re: aggiehunter03]
QuitShootinYoungBucks Online   content
THF Trophy Hunter

Registered: 11/01/12
Posts: 7667
Loc: Lubbock, TX
I'd post that on one of the AR forums
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#6191553 - 02/19/16 09:21 PM Re: Help ID this Upper [Re: aggiehunter03]
TexFlip Online   content
THF Trophy Hunter

Registered: 08/18/12
Posts: 9788
Loc: Chambers County
Cardinal Forge

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#6191559 - 02/19/16 09:29 PM Re: Help ID this Upper [Re: TexFlip]
5 Stand Dan Online   content
Pro Tracker

Registered: 06/23/12
Posts: 1574
Loc: DFW
Originally Posted By: TexFlip
Cardinal Forge


+1

Cardinal forge make upper receiver blanks for many companies. For example:
RRA
DSA
Spikes Tactical
LMT
Stag
CMT
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#6191577 - 02/19/16 09:56 PM Re: Help ID this Upper [Re: aggiehunter03]
aggiehunter03 Online   content
Veteran Tracker

Registered: 11/13/09
Posts: 2470
Loc: Mineral Wells, Texas
Does Cardinal make them for YHM?


Edited by aggiehunter03 (02/19/16 09:57 PM)
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#6193670 - 02/21/16 07:48 PM Re: Help ID this Upper [Re: aggiehunter03]
Big Fitz Offline
Veteran Tracker

Registered: 12/06/09
Posts: 2189
Loc: McKinney, TX
Below is some info I found on other sites, hope this helps.

Upper receiver forge markings:

Offset Square is: Brass Aluminum Forging
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 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
LM is: LAR / Martin Marietta
M "diamond" is: Mueller Industries
PA is: Capco / Anchor Harvey
PM is: Capco / Martin Marietta
Square (symbol) is: Brass Aluminum

M-16 markings:

CAF Colt / Alcoa Forge
CH Colt / Harvey Aluminum (1st Colt Forgings)
CM Colt / Martin Marietta
DK Diemaco / Kaiser
FK, FS, BK, DK, EK, FK, AF, CW, AA, FS Bushmaster
LK FN / Kaiser
LM LAR / Martin Marietta (Army Spares Contract)
“Splintered A” F: FNMI Anchor Harvey“Splintered A” F: FNMI Anchor Harvey
“Splintered A” C: Colt Anchor Harvey
Splintered A Olympic Arms? (Anchor Harvey)


My list of verified upper receiver forge markings used by AR-15 upper manufactuers/sellers


DSA - Cardinal forge
Rock River - Cardinal forge
Delton - Cerro forge, square
DPMS - Cerro
Spikes Tactical - Cerro
Stag - Cardinal, Cerro
LWRC- splintered A
Para USA - ZM
Knight’s Armament - Cerro (keyhole)
Wilson Combat - splintered A
Double Star - Cerro
Smith &Wesson - Cerro
Daniel Defense - Cerro
Sabre Defense - Cerro?
Remington - Cerro
BCM - Cerro, square
Bushmaster - Cerro
Stag - splintered A, Cardinal
J&T Distributing (Doublestar) - Cerro, C
CMMG - Cerro
Colt M4 - Cerro (C keyhole), square, Cardinal (“C“ bird‘s head), C AF
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Originally Posted By: syncerus
I prefer to think of myself as a control enthusiast. wink

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#6195611 - 02/23/16 09:18 AM Re: Help ID this Upper [Re: aggiehunter03]
soje Offline
Bird Dog

Registered: 12/22/12
Posts: 478
Loc: Plano
Me too.

Originally Posted By: aggiehunter03
I thought it kind of resembled the Rainier Arms logo but haven't handled one in person.

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