Originally Posted by DocsMachine
The Alley Cat/Thunder Cat ... took a never-used-anywhere-else oddball barrel thread which limited your options to the stock barrel or perhaps a Freak back- if you could find one.
I know - I really wish they had gone with 'Cocker threads from the git-go. That being said - I have an Empire barrel kit (which is really nice) and a pair of PMI barrels (which are pretty nice) in ICD thread - so I'm good to go. Besides, the stock barrel was "not so bad".