This is the Yeethammer Nerf blaster by Spyr. It is a powerful Nerf blaster that uses the silly shell standard for shooting darts.
It will be made in 3-7 random colors if you buy it. (I will try to make it look as good as I can.
The silly shells are a kind of shotgun shell that you load up with different types of nerf darts. This means that this blaster can shoot any type of Nerf dart. The silly shells options above mean that when you pick that style of Nerf dart, you will get four of the matching silly shells and 3x the amount of that type of Nerf dart that fits in the shell.
If you purchase the non-assembles version, the tutorial for putting it together is not very good, but it makes do. The link for it is here: https://www.youtube.com/playlist?list=PLAhWMbkMdmbdqtUxXlhaS-XgnqBFM62RJ
