Colt CS told Arfcommers per this thread...
"...The “CR” prefix is what is currently used on all our LE products. There may be some LE prefix lowers in the marketplace still but all new lowers on all LE rifles are CR prefix. The only difference between an LE prefix lower and a CR prefix lower is the serial number range..."
"...Also asked about the new CR prefix serial numbers. They said it was a new standardization of serial numbers they were doing. The only one that is different is the A4 model that starts was a CAR..."
Thought I'd bring this up. Only discussion about the CR prefix I've read is in Brownells Colt 6920 lower sale discussions.
Seems some on this site equated the LE serial number prefix with a law enforcement model. It ain't. It's JAFAR / 6920.
If your lower is not rolled marked "LAW ENFORCEMENT" it is not now, never has been, and never will be a "LAW ENFORCEMENT" model.
ETA: And a LE roll marked 6920 lower is just another 6920 lower with a "LAW ENFORCEMENT" roll mark on it brought about by the ban years and later Colt marketing.
Am I right?