Yes, the entire System Shop only sells one type of item — weapons. They're sourced from various countries. Tang Qing isn't very familiar with firearms, and the product descriptions didn't indicate which country they were from. Each weapon only had a model number and bullet quantity listed, along with a selection of complementary parts.
Of course, these are just ordinary firearms and their corresponding bayonets, silencers, mounts, and other similar items. The system didn't offer anything like planes, cannons, aircraft carriers, or even grenade launchers and hand grenades. However, based on the system's way of doing things, Tang Qing was certain that these types of items would become available later on.
For example, when the system reached Level 2, it provided the option to trade with U.S. dollars. At Level 3, Euros were added to the mix. Tang Qing was certain that more weapon options would be unlocked at Level 4.
