Dawson or Grams are the kit to go with these days. You can get both direct. If you're just looking for reliability then stick with the factory follower. Swaping to a Dawson, Grams, or in the past an arrendondo is to get better capacity. skinnier followers have a tendancy to tip or get hung up in the mags, Dawson/Grams added a rib on the bottom of the follower to use the first couple of spring coils to keep it up right. Dawson/Grams will NOT lock the slide open after the last round, I'm not sure what Ralph's does.