There is a rail mount you can buy for like $30. It attaches to one of the standard mounts that comes with the GoPro. I have one and no matter how much you tighten it it jumps up with recoil. So I am going to buy another housing so that I can glue the house and the plastic part together. You can't glue it to the mount that goes on the rail because the screw to tighten it is under where the clip goes. Also be careful when tightening it because it can go through the polymer frame. Otherwise it's cool as hell to play with. I just keep forgetting to take it to the range.