Logan's Run Flame Gun Holster

I'm new to Tinkercad so this may not be exact but does fit the Sandman Flame gun triangle part here: https://www.thingiverse.com/thing:503407.
There are two pieces you can glue together. The flat piece goes on the bottom of the larger "V" shape so that the smaller "V" is on the outside.
I glued a piece of Velcro on the back so I can attach it to a belt for a cosplay I did at a comic con.