Tangentially related; how do you like the Krebs selector? Seems good, but it seems like thinner gauge metal. So it feels a bit flimsy compared to the standard one that came on my Bulgy 74.
I love it. I have it on all my defensive AKs---it's one of those products that make you ask "why didn't someone think of this sooner?" If I had the tools to rivet/weld I'd just make one myself and never buy one but as I move all the time my tools are limited. It's the best functional AK improvement you can make outside of a red dot in my opinion.