nothing wrong with it just the way it is.
I have had an SKS since before they were even imported
into this country by dealers and have never once had a slamfire.
No one I know who has one has ever had a slam fire either?
Now I do know of one that had a "Worn " Sear that would go full auto every time
you squeezed the trigger but a new firing pin would not have solved that.
I think the new firing pin is a "fix" for a non-existant problem. I have never seen
a firing pin break in a CZ-52 pistol either and to hear many talk about them,
they must be made of glass
That peep sight is interesting but way too far forward
for these old eyes of mine.