Very cool but I’m having a hard time seeing how it’s a gun tool unless it’s just a holder for the worm or it’s for pistols with 2” barrels.
Worm, ball (or wad) puller, pick, and screwdriver (now worn away in the first example). Lacks a knapping hammer, but otherwise it has the same function as this one:
https://flintlocks.com/parts.htm so I'm not sure why we wouldn't refer to it as a gun tool. It just has a firesteel added on...There are some other combination tools on that site which are more of a general character, but these seem specifically geared towards a shooter.