I'm in the process of rebuilding a couple rifles and I'm thinking about going with adjustable gas and a liteweight BCG in at least one of them, budget permitting. I know adjustable gas blocks have been the standard for many years, but does anyone have any experience with the adjustable gas keys? I like the idea of being able to swap in a standard BCG if I run into any reliability problems, but I'd love to hear any opinions or experience with them.
I googled the subject and most of the threads I found seem to have been trashed