The PSA is just friction I think, but I love the Krebs notch on the safety for that purpose.
Pretty sure I had one of those on my old AK. I think I had one of the ones with a notch and the extended shelf, and my recollection was that I liked the notch but could do without the shelf. From my notes on my previous 365 days of AK...
I kept the Blackjack Swift extended safety lever on the gun for the duration of this experiment. While I came to appreciate it, especially the bolt-hold-open notch for admin purposes, I also came to see it as unnecessary. The notch could be added to the stock safety with a couple of minutes with some hand tools, and it is not the hardship that I thought it would be to swipe off the standard safety, nor to re-engage it.
The late Paul Gomez taught me "AK" and I came to appreciate the Krebs "ledge" as an easier way to disengage and a good position for my trigger finger to reside, just the manual of arms I learned with the thing. Clearly just a little file time is all that is required for the notch.
I saw that the notch comes from the factory on the new Century VSKA, a fellow gun club member is trying to sell me his...I am reluctant based on the overall Century reputation, but this guy make me an attractive offer and I did get to shoot the sample he has.
Something AK related I wrote for JTT. Lemme know what you think.
https://jerkingthetrigger.com/2020/0...e-with-the-ak/