Strictly speaking, the guns of Terra were actually gun-shaped staves. Their power varied enormously depending on each person's Originium Arts.
This applied not only to Laterano's Guardian Guns, but also to their imitations. Put simply, because of Originium, this world's technological development had all been built upon Originium, much like how the later technology in Naruto had been developed around Chakra.
Because the difference in power was so vast, aside from Laterano's military, which used guns as its primary weapons, the armies of other countries rarely used guns at all.
After all, the guns imitated on the market were mainly compact, close-range firearms such as pistols. There were no imitations of long-range, high-powered firearms on the market. Whether that was because they could not be successfully replicated or because people feared Laterano and did not dare imitate them was unclear.
Perhaps both were true. Laterano was extremely mysterious, especially since its people could not fire their own guns at fellow Laterano citizens, or they would Fall. That had already touched upon the realm of rules. In any case, Shen Fei absolutely could not accomplish something like that.
From this, it could be seen that Laterano probably had immortals similar to Nian, Ling, and Dusk within it. Unfortunately, until the time he transmigrated, there had not been much information about Laterano. He could only learn a little about it through Penguin Logistics, Exusiai, and Rhodes Island.
Although regular armies did not use those compact firearms, they were deeply favored by security companies, mercenaries, and underground gang members everywhere. For example, Blacksteel Worldwide equipped its operators with firearms. The five-star Defender Liskarm carried a pistol, as did a certain cat-eared girl.
This was mainly because compact firearms were convenient to carry. Compared with other types of bows and crossbows, pistols were easier