rotate the selector lever ccw to straight up and pull it to the right.
remove the retaining wire.
remove the hammer-trigger pivot pins from the left side.
remove you old parts and hammer spring.
place your hammer spring on the redstar hammer and push the pivot pin thru it.
position the trigger and disconnector in the rifle and push in the pivot pin.
replace your retaining wire or use the redstararms retainer plate.
push the selector lever pivot stub into the retaining wire loop or retaining plate hole and rotate the leve cw into the safe position.