I contacted Star Trek prop maker Richard Coyle about the suspect Star Trek III Phaser and the Klingon Disruptor. Here is what he said:
The Star Trek III Phaser:
It looks like a very poor recast of one of my models that I used to make to sell to fans at a cons.
But it is not one of my models, not my work. too crappy.
The missing rail under the front end in front of the trigger is a mark of one of my early models as is the out of line LEDs in the Phaser One.
SO it is not off a original studio prop, it is off one of my models.
By the way the Klingon Pistol needing repairs is one of mine…
The two part body with the black handle is a tell.
The real ones were one part model and handle.
I think I should be involved with your site more often…
Sadly a lot of my old work shows up now as so called real props.