No, I ordered it on amazon. It's basically a ram type (ball and socket) set up you see for graphs, but made for cameras. Either video or still. One end has an adapter to fit cameras and the other has an adjustable C clamp.
I remove the seat in the bow, and leave the post. Then just clamp the mount onto the top. It works really well. A lot better than using a tripod. I know this from experience, after a buddy knocked my camera to the bottom in 200' fow last summer while using a tripod.
If you're interested, I can probably dig up the link on amazon for you.