User Panel
User Panel
User Panel
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Posted: 12/22/2017 4:27:38 PM EDT
A friend built a carbine using a parts kit from PSA and the upper has an unusual marking on it - see below.
Anyone have a clue as to who made it? 
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Posted: 12/22/2017 4:47:34 PM EDT
[#1]
Sigma.
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Posted: 12/22/2017 4:58:49 PM EDT
[#2]
Thanks!
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Posted: 12/22/2017 6:29:01 PM EDT
[#3]
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Posted: 2/21/2018 6:29:28 AM EDT
[#4]
Ahhh finally I've been trying to Google to figure out what upper I got from psa.
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Posted: 2/21/2018 7:13:14 AM EDT
[#5]
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Posted: 2/21/2018 7:44:03 AM EDT
[#6]
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Posted: 2/21/2018 10:16:44 AM EDT
[#7]
Interesting.
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