I also have an 8 round Newt. Good stuff.
Steven, they are nylon, with some serious velcro attachments. I know what you are thinking, it's velcro, but this stuff is sick!
I have been the route of the plastic saddles. I have an 1100 also with his products.
I shoot 3 gun matches with mine, once in a while I have a round fall out, but thats it. Easy on and off. While you are at it, check his slide lock 2 pack. Another sweet addition.
(No, I dont work for 3 gun gear!)
Kevin