I have a firestorm and it's a great gun! Shoots well, carries like a dream, and it puts deer down. Also, the ignition with them is incredibly quick compared to many other flints. I don't know what exactly your brother is looking for. But if he's interested in a used Firestorm flint in excellent condition and at a fair price have him look me up. My email is [email protected]. I'm selling because I won't have enough vacation time to hunt late season this year and I want to try an inline out.

Good Hunting,
-Brian Craig