Just import the PPZR Piorun instead. It is much more modern and more effective than the Stinger, for example with much better flare evasion. Stinger is from the 70s.
The problem with scaling up manufacturing is that the US needs to manufacture here, now. What good is importing a polish missile when Wagner is so close to the factory that they can almost make it out if they squint? It’s not like Poland has a history of getting invaded or anything, right? Why could we possibly want to continue outsourcing our production to try to fix the problem that outsourcing production caused?
a technology transfer is only slightly lower risk than restarting production on an old design. You have about half of the issues - because I can all but guarantee - no matter how good the polish missile is, and no matter how modern their production methodology is, we're gonna probably need to build it differently here than it would be built in Poland.
A good example is when the US started making Merlin Engines during WWII, it amounted to a near redesign.
Well for one when you have a stockpile you don't need more production. Secondly when the first, second, and fourth biggest air forces in the world team up against a country that can't even suppress one of the smallest you don't need MANPADS if you're on their side.
The terminal guidance package on a modern Stinger is significantly more sophisticated than the Piorun, which uses a terminal guidance technology more in common with older Stinger variants.
Modern Stingers use the same guidance package as the AIM-9X Sidewinder and have a dual mode IR/UV imager that is largely impervious to flares. There isn't anything more sophisticated on the market.
The real issue is politics and lobbying. It's extremely rare that the US would adopt foreign designs vs designing and building in-house. After all, we want to be the ones selling to the rest of the world.
