This is what I got, with the red. Though, at the time, they offered a running horse engraving.
It screws on as far down as it will go. Then you can back it up so the engraving is facing the right direction and tighten it down with a screw on the side. The screw is then covered by the colored cap that screws down over the top of it. High quality fit and finish. Only problem I had with it was it got loose one day (vibrations I guess, I've had it for 2 years), and it took like an hour of just struggling with it to remove the red ring to get to the screw on the inside. Was in the middle of december, so I imagine the cold might have shrunk it, and the heat from my hands trying to break it loose warmed it up? I have no idea.
And if I was one to complain about heat, I wouldn't have gotten black leather interior. But yeah, it gets hot. Suck it up.
Edit: Oh yeah... uprproducts.com, 50 bucks.