The Invaders season 1 vaporizer gun.
I have been looking for one of these for years and this one came up on ebay.
This is the larger season 1 gun, I've never seen a kit of the small season 2 version.
I have seen the original on display in the Science Fiction Museum in seattle, this kit looks accurate in size and shape.
I have no information on the origins of the kit.
It has 3 resin parts and a targeting screen decal.
After starting the clean up the pin holes show up. These are just a part of garage resin kits. I'm trying to limit the surface work to limit the pin holes. Surface prep usually ends up taking the most time on these kits.
The body of the gun is large, solid, and HEAVY!
From the Science Fiction Museum:
The paint scheme is monochromatic, kind of boring. The color looks to be a medium/dark grey.
BTW in the 2nd and 3rd photo you can see the 2nd season pistol.