This is a slightly older drawing that I doodled for a friend who loved the setting and wanted to contribute. I am always happy to have other folks contribute to the setting and I did this drawing based on their ideas and a conversation where I caught em up on the lore and gave thoughts on the worldbuilding. Here is me paraphrasing his lore:

Reworking the Vegas tribals for the Pulse canon and he wanted them to be a bit wealth obsessed and pitched the idea of them adorning themselves in prepulse coins, casino tokens, and other signs of wealth like credit cards on the belief that it was avarice that cursed them into creatures that could afford nothing
They are also very obsessed with luck (being in Vegas and all) and there are a lot of big and small rituals they associate with appeasing the Big House up high in the sky. Things like identifying and claiming lucky charms (this drek seen licking their lucky quarter that is also mounted to their nose) to specific long winded rituals involving a lot of dice rolling, chanting and dancing to summon the predicted will of chance
So an early culture in progress for sure
The gun is a homemade 3 shot revolver. A bit better than the more typical single shot weapons found amongst most drekir and these tribes. Most tribes have at least one or two repeating firearms, bolt actions, pump actions usually, though more common than those are either revolvers (scavenged/jerry rigged or scrap built) or harmonica styled weapons. These tend to only be built for anywhere from 2-6 shots depending on the specific homemade firearm
most of these are not self indexing, so when you fire you have to manually rotate the cylinder or move the slide up the next shot of the cylinder by hand. There are some single action and double action revolvers that did survive though and there are some cultures that have made double action revolvers/harmonica guns on their own such as the Morites of Salt Lake
These weapons are generally of a respectable value, being technical repeating guns, though are definitely not perfect weapons.