This is the New Alien Blaster from the Brand New Fallout 4. This can be found when a spaceship comes crashing down. All you need to do is find the site. Follow the goo and kill the alien and take his blaster.
I am going to make attachable mods for this so you too can upgrade you model.
The model took around 12hrs to print. I've hollowed the model to fit LED lights. the idea is you print it in clear and paint over the areas where light should not show through. For a good book on basic LED set ups for cosplay, this is the best book i have used to help out. https://www.kamuicosplay.com/product/cosplaylightsprint/
For a how to guide on printing this bad boy check out the 3D printing nerds video on it!
(PLEASE: Do not sell or upload on any other websites without my permission.
I will really appreciate if you tag me and credit me.