What are the Moral Implications of starting a futuristic weapon manufacturing company?

As-salamu alaykum, respected scholars, I have recently found myself fascinated by futuristic weapons and technologies depicted in science-fiction movies. This fascination has led me to dream of establishing a futuristic weapons manufacturing company, creating fingerprint-enabled weapons and even Iron-Man-like suits. My question is whether it would be considered halal (permissible) for me to pursue such a venture? Additionally, I plan to set up this company in the United States, which is a non-Muslim country. If my company manufactures and supplies guns to the US army and its citizens, would this activity still be permissible according to Islamic principles? I am seeking guidance on the religious implications of this endeavor and how to navigate the ethical considerations of being involved in the weapons industry. Thank you for your time and valuable insights. Jazakum Allahu khairan.