All sorts of dire (internet) warnings as to what sort of harm crud in the open channel can do to a Glock's inner workings. YET ? No INEXPENSIVE plastic grip plug included with new Glocks ? My new Gen 5 19 looks rather naked and exposed without said plug. I will search out and install one at the first opportunity. If I could I would swap off a couple of the worthless to me extra backstraps that come with the gun for a plug I would consider it, maybe ? Inexpensive plastic bit, seems like a no-brainer to include one with the gun ?