I have an upper, A1 sight, ejection port cover, but no FA, large pivot/takedown pins. Did anyone make uppers in this configuration other than Colt? The only marking is a C and an M just below the rear of the carry handle. Thanks.
DanO
Posted: 6/18/2010 6:31:10 PM EDT
[#1]
CM = Colt / Martin Marietta
Posted: 6/19/2010 12:29:11 PM EDT
[#2]
An old Colt Sporter I upper. The one, the only.
Posted: 6/19/2010 2:07:00 PM EDT
[#3]
Cool, thanks. I was pretty sure it was a Colt, but I didn't want to offer this for sale as a "Colt" part until I did a little checking.
DanO
Posted: 6/20/2010 11:20:30 AM EDT
[#4]
Colt SP1 receiver.
Colt was the only one to make them.
The pivot pin is the only one that is larger, the take down pin is standard sized.
