Can't seem to find this serial #?

[Paradox998]

HI:

I just purchased my first colt carbine, a match target lightweight. I am trying to look up the serial number production info. All the serials I find have a two digit but my colt has a three digit.

Can anyone tell me about a serial CSL 003xxx?

Thanks

[neto1978]

mine is csl 004xxx
tks.