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1/25/2018 7:38:29 AM
Posted: 5/20/2002 2:41:57 AM EST
I have a couple of SP-1 uppers. One is marked CK. Who is the manufacturer of this Colt upper? Thanks.
Link Posted: 5/20/2002 3:16:47 AM EST

Kaiser (sp?)
Link Posted: 5/20/2002 4:41:41 AM EST
Thanks. On Biggerhammer they have some other markings, but not this one. I appreciate your help. Joe
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