Super Gunsmith

First of all, this is not an apocalyptic style, nor is it a practicing style. However, this level still needs to be upgraded, but no matter how high it is, you will still be an ordinary person. Want to be strong? No! Want superpowers? Sorry, after the founding of the People's Republic of China, you are not allowed to become a spirit, nor can you become a human being! Want inner strength? I'm sorry, I can't do this kind of thing that has been practiced for more than ten years and is fully used up in two hours, and does not abide by the conservation of energy at all! Why upgrade, you ask? He is much more capable, making guns, cannons, and bombs, and launching a rocket to throw nuclear bombs. What? You want to hit me? First dismantle the 100,000 turrets in my base and then let's talk! Nani, are you holding it in your mouth so much that you want to blow me up? Come, come, look at the extra moon in the sky? That's my uncle's steel fortress. Can you just let it blow up for ten days? I'll go ahead and prepare 100,000 big Ivans for you as a return gift!