Working on an acc/Maadi front brake.  I have gotten the brake off and rethreaded the barrel.  I have also
Knocked out the front site pin.   I tapped the retaining pin back a little but it just seems stuck.  I have been soaking
it in penetrating oil.  I did not want to knock the pin to far back.   Any ideas on my next step?   I feel I
am almost there but not totally sure there is a spring in there.