So for geeky fan reasons I've been trying to identify off the shelf gear used in Sci Fi shows. This is from Agents of Shield. Presumably it is kydex for a Gen 1 M&P. I can tell it's got an optics cut and a single tensioning screw but I haven't been able to find anything that matches it so far. I've done well at figuring out the exact tactical pants (the wardrobe guys bought the most tactically expensive pants in the world), boots, gloves. A lot of it is out of production, naturally, but with a show this recent often one can find NOS here and there.
Fun trivia- for concealed carry the Shield agents use M&P Shields.