It's Obviously a Flashlight, but You Call It a Laser Weapon?

147-Year-old Jiang Chen is one of the first batch of immortals in the future. Due to an accident, he traveled back to 2022 more than a hundred years ago. This earth is constantly war-torn, and the country allows private weapons production. Jiang Chen decided to earn money to build wormhole equipment and go home, starting a military entrepreneurial journey. However, these strange-looking weapons have been questioned. "This is obviously a flashlight, but you call this a laser weapon?" "It's only 70 centimeters long, so why call it a sniper rifle? Can the bullet fly a thousand meters?" "Electromagnetic explosion grenade? How imaginative! It's clearly the kerosene lamp from the last century!" At this time, a rebellion broke out in a certain country, and Jiang Chen finally had a chance to display his weapons. "It lights up half the city. Does it make your eyes uncomfortable? It's simple. Just change it to a matte version." "The accuracy of this sniper is indeed a bit poor, but our bullets can explode! Still can't hit? Let's find out with a hundred rounds." "It's really my fault in designing the grenade. The explosion range is indeed too large! If I don't have enough arm strength, I will lose it." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.