wasnt sure where to ask this, but has anyone used or seen those mini barrel LED spotlights?

basically i was curious if anyone knew what was used to make the L mounting bracket? im going to guess there is some store out there that sells these things that work with the small thumb screws, one hole is threaded to work with the thumb screw and the other is just a hole you use to mount the light. any info/help would be fantastic.

here is a pic the light, i will try to dig up a better image to show it off a little better: