I would really love to help you guys with ideas regarding new weapons in this game. I am quite the gun-nut myself and guns that feel, sound and look right are high on my priority list when it comes to enjoyment in games.
I love the direction Far Far West has taken with their weapon designs because its somewhat wild west contemporary while having its own Steam-Punky robotic spin on it.
Unfortunately I dont know how to 3D model, nor do I draw really well but I definitely have some ideas for weapons that fit into the game. Obviously I also dont mind "greebling" or "frankensteining" semi-real life designs to fit the style!
For a secondary example: A Flare gun that when hitting an enemy will bounce to the head of the next one.
Upgrades could be: Crit Chance, Bounce Chance/Amount, Damage per Bounce maybe even AOE chance.
I am still debating if it should be rigged together via one of those old cans thats laying around at the Saloon area or some other repurposed item/junk.
I was also thinking the Volcanic Pistol would fit very well but then I wondered if it shouldnt be something more exotic but within the same style like the Bittner Pistol as the base model for another new Secondary.
These are only a couple ideas and obviously there would be more to discuss. I may also try to draw examples so I can better relay what I am envisioning