I'm surprised there's not more Stranger Things response! At various Cons I can see that it's a popular cosplay.
I'm working on my first Stranger Things cosplay, Chief Jim Hopper.
I'm slowly piecing it together, good so far, and plan to debut it at WonderCon in Anaheim early 2018.
Here's what I have:
(the holster isn't actually green! but orange-brown)
Here are screen shots: