Quest 3 gun stock better front grip
This is meant to be used with alanektgk's modifications (https://www.thingiverse.com/thing:6618801) and with knuckle straps (AMVR) for the controllers.
I didn't like how much rotation the front controller did as this changes where you're aiming in a lot of games. This is designed to add a spot for the controller to fit into and help make the positioning more consistent.
No foam required. I would recommend using sand paper or a torch to smooth some of the edges though.