This is why I join OSA. Thank you! I’ll have to look these up.You can do that too!
They was called a Contender Carbine.
Generally 16 and 21", then the later g2 models was 23"
But 8" is still 8 inches!
You could have a Condender Carbine in 222 also.
Back before S&W bought up Thompson Center and ruined them, they had a custom shop called Fox Ridge Outfitters.
They had a big list of cartridges outside of the standard TC offerings to select from!