102 American Shooting Journal // August 2019
Step 12:
Slide the bolt into the upper and insert main spring. Using a
flat head screwdriver, compress the spring through the firing
pin hole. Insert the bolt stop so it catches the edge of the
spring. Push the bolt stop in place and pull the screwdriver
out at the same time.Step 13:
Inspect the tail of the firing pin. A cut in the bolt stop will
have corresponding geometry. Insert the firing pin, push
it in with the screwdriver about a quarter of an inch, turn
counter-clockwise and remove the screwdriver. The firing
pin will be protruding from the bolt back slightly.Step 14:
Install hammer into subframe and insert sear spring/hammer pin to secure it.