I brought one from Marco's awhile ago but just checked there web site and there out of stock. Never dealt with action pinball though.
One thing I learnt when putting the new trim on my FG backglass is that you have to be very careful and keep your eye on the back (painted) side of the glass. If the trim is tight then you can easily lift the paint. I chipped a bit out of my glass but fortunately it wasn't much and the trim covered.

thanks for the tip will try to be very careful then. And thanks Nick I think I might give them a try.