Screenshots of what you're doing.

Woah! That thing looks freaking cool, definitely a worthy replacement. One of the more interesting weapons I've seen developed for ANY game and that's saying a lot. I don't know what I find most interesting about the look of it, the minimalist stripped-down appearance looks really cool and the magazine placement is interesting (located in the back of the weapon) as well and reflects the typical accuracy of the shotguns found in Nexuiz and Xonotic.

yes, it's really cool, except one thing. Most of those long thin elements are too thin in my opinion. It looks fragile. But generally, neat model.

I'm pretty sure it won't look so fragile in-game, especially when it's textured.