Uses a clamping-style system to mount your GoPro (or G-CAM870) onto your Picatinny rail.
I used M5 x 0.8 socket screws (30mm length) and nuts for the hardware.
There are two tiny sprues connecting the two pieces together. You'll need to cut and trim this off and maybe clean any powder left in between it hasn't been cleaned by Shapeways already.
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