Resin detail set of weapons system for U.S.S. Reliant / Miranda class star ship in scale 1/537 from movie STAR TREK II: The Wrath of Khan for AMT kit
This is partial text from the full article (usually with photos) at https://modelgeek.com/news/miranda-class---phaser-torpedo-launchers
Greenstrawberry makes very good resin products and their Customer Service direct from their online store is great—I bought from them a few times. Shipping during COVID, naturally, might be delayed and slower. If you have any questions, email them first. They accept PayPal.
Do note that some online hobby shops do carry their products for less than retail price so do shop around.