Announcement: Because Trevor is an evil bastard, not everything in the Global Arms Trading Company tent is obvioous. Because Trevor is still a little nice, he's telling you so. But don't worry, all the less obvious things are still unaffordable!

So I may have missed out on some stuff, seeing as I'm sort of bad at locating stuff. Also, for some of the items have special features. I'm not much of a weapons type smarty...soo, you'll have to ask around what those features are.

[Global Arms Trading Company, Surplus Shop]
This spacious tent is impressively large, providing room for a large number of displays, which seem to fill every corner of the floorspace. A steady stream of curious shoppers snoop through the items on tables, racks, walls, and inside storage crates.
You also see a domesticated hushoguj and a weapon bin.
You notice an exit leading out.

A weapon bin:

A large table:

A wide rack:

A back wall:

A storage crate:

[Global Arms Trading Company, Cramped Corner]
This tiny nook is secluded from the main floor of the tent by high stacks of merchandise, and only seems to have room for a single table.
You notice an exit leading out.

A high table: