Why does it look like a double barrel shotgun but merged we are pistol making it a double barrel pistol

Art @FRERSHELP

This is soooooooooooooooooooooooooooooooooooooooooooooooo cool

I'm the master of seasons

I had permission from one of my friends that's a furry to post this

This is my type of gun I like to make

Why do they look so similar?!

Me

Was that the art of 87