After the frame pin has been removed, back the drift punch
out and release the second hammer for removal along with the mainspring cap and mainspring.
The front is drift-adjustable --but with the adjustable rear, who needs a drift punch
or sight pusher?
You may also need a brass drift punch
and hammer to adjust the windage of the dovetail front sight.
With a small drift punch
, press the stud flush with the frame.
You'll need a 2x4, a small drift punch
, a standard 1/4-in.
Adjusting for windage requires moving the sight with an adjustment tool-- Brownells sells several excellent types, from an elaborate gunsmith's fixture to a hammer and non-marring drift punch
The pin's peened face made it impossible to drive it all the way out with a drift punch
. We managed to drive it part way out, exposing it sufficiently to file off its rivet-face with a medium sized safe-faced pillar file.
Drive the front sight pin out from left to right using a 3/32 drift punch
. The sight is then pulled from the barrel using a special tool.
Place the bolt in a padded vise and insert a drift punch
of less than 0.04 diameter into the very small hole that is located in the bolt head near the extractor.
Make note of the position of the rear sight before drifting it to the right with a nylon or other non-marring drift punch
. Drift it only as far as needed to remove the firing pin block spring and firing pin block from the top of the slide.
Replace the hammer springs from within the housing, maneuvering the long arm of the springs through their holes, levering the coil with a proper-sized drift punch
. It may seem a little tricky at first, however, they go in place fairly easy.
Second, drift out the retaining pin in a broken unit you have on hand with a very small drift punch
or short length of drill rod.