Replace the cacking arm in the cylinder slot and replace cocking arm pivot pin. I peened this over a little after replacing it. Slide in sear and locate pin. Locate trigger and small spring and locate pin and then locate middle pin (stop pin). Replace the two big coil springs on the trigger and sear. Replace action in frame and replace the three screws.
I find this to be a nice pistol. The instructions in the handbook are not much use. To adjust the elevation of the foresight, you have to press down on the blade so the small square of steel on the adjuster screw is out of its slot before turning the adjuster screw. I dont like the ratchet/antibeartrap device. I think if you struggle for a mainspring, a Diana 25 one would fit but I wouldnt swear to it. I fitted a small bit of tube inside the mainspring to act as a floating guide. If you know someone with a lathe, they could make up a longer cylinder end plug and tap it to take a shoulder stock.