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AR15.COM
12/13/2011 8:41:50 PM EDT
dsa, aero, cmt? Anyone happen to know ?

Thanks,
T
12/14/2011 5:46:01 AM EDT
[#1]
I believe they are Aero........it has the upward facing arrow roll mark on the upper reciever.

FWIW...PSA told me they get their upper and lower recievers from the same manufacturer.
12/14/2011 2:36:31 PM EDT
[#2]
psa uses anchor harvey forgings on the uppers. don't know who does the mill work for them.
12/14/2011 3:11:39 PM EDT
[#3]
I just checked mine....it is the anchor harvey mark not aero
12/15/2011 4:34:19 PM EDT
[#4]
Correct me if I'm wrong, but doesn't Anchor Harvey make the forging, and Aero Precision do the final machining and anodized finish?
12/16/2011 7:59:05 PM EDT
[#5]
Most places like PSA and other companies have a spec they give to suppliers, and can have multiple suppliers for the same part.
Colt/BCM ect... have had various suppliers of uppers

PSA had Aero lowers for a while then they had L.W. Schneider I think, and may still be using those.