These clamps are made to fit UnimatrixRed's holster for his awesome Boomerang phaser. You can download the holster and phaser here: https://www.printables.com/de/model/404112-star-trek-boomerang-phaser
The “front” (larger) clip will have to be attached to the strips right behind the pouch, the “back” (smaller) one to the brace. As the parts do not have any alignment clamps or pins however, you are fairly free to just glue them to any position you like. Just watch out on the vertical orientation of the clips, depending on whether you're left- or right-handed. I tried to keep the clips quite slim for making them resemble the ALICE clamps on the screenused holsters. If you prefer them wider, feel free to rescale the files on the z-axis in your slicer.
Many thanks to UnimatrixRed for the amazing “Boomerang” with holster!
The author remixed this model.