Depending on the model and condition they can range from $300 to $650 If you identify the model you can get a much better idea of it's worth. The most common models in flint are the Hawken and Renegade, but there are several other models out there. An easy way to figure it out would be match pictures on the on line auction sights like gunbroker, auction arms and guns america, there you can also get a feel for what they are selling for,
$400-$450
100-300 USD
$400 - $450 plus $125 for tang sight per one listed on eBay now. Outstanding rifle had one for decades.
Thompson Center Arms was created in 1965.
200-400 USD
100-400 USD or so
100-400 or so
50- 250 usd
100-325 USD
No sn data I know of.
About tree fiddy
100-450 USD or so depending on specifics