Here's a useful link Johno:
http://www.remingtonsociety.com/rsa/journals/Model141I see Model 14 carbines once in a while, but I don't recall ever seeing a legitimate 141 carbine. Guns shortened by Bubba do show up once in a while, but real carbine versions of the Remington pumps are scarce.
The 14 is in my opinion a better gun than the 141 in many ways. I've owned both in the past, but don't have any now.
Rod