I see a couple of threads about a store-bought holder which may work fine; but, I built my own before I saw it. The older I get, the more I prefer to hunt from ladder stands. So, I designed and built my prototype for my ladder stands.
The prototype is made from a couple of pieces of pressure treated lumber, desk screws, a few u-bolts and water-proof glue. It bolts to the bottom platform of my stand and holds my Matrix vertically about 3.5 inches out in front of the platform. My Matrix 380's stirrup fits into the slot on top of the holder loosely, but not so loosely as to allow the bow to tilt much either right, left, forward or backward. Because the crossbow is held vertically, there's not much torque exerted by it in any direction. The pistol grip of the bow is held at about knee-level. I simply lift the bow quietly out of the slot to use it.
I used the first prototype yesterday. It worked well. I'm attaching my slightly refined design specs to see if anyone else has made anything like it.
![Image](https://dl.dropboxusercontent.com/u/14080410/2016-10-16%2012_16_34-Microsoft%20Excel%20-%20Matrix380BowHolder.png)
The unrefined prototype looks like this:
I guess it could be adapted to work with my climber. Of course, it's a little heavy right now. I'll probably make more refinements before I try a climber version. I'd appreciate your thoughts/comments.