Figured it’d be at 12:00, on top which is about the only place it could be as the barrel unlocks and drops down before firing pen can retract.
Google firing pin stop plate and how different ones can affect slide opening and timing.
DF
I had the rounded stop plate in there this trip. Previously I had the flat one
I just remembered I have buffers but forgot to put them in, I dont know if it would have made a difference in a commander though
