Slumlord44,
The lever must be in the up position as the block starts to clear so that the link will pass through the lower tang. 

Mike

If I remember right I think you have to push the lever up and forward so the plunger that holds the lever closed toggles to the up position and then the block will slide out.
Harder to explain than to do once you figure it out.  

Steve

Sureshot
You are correct. Hard to explain in words, but simple when you figure it out. Have to push prety hard and it snaps over center into position. Went to install new firing pin and would not go all the way into the hole. Finaly figured out that when the old pin broke it mangled the hole where the pin comes through the face of the block. A little careful filing with a small round file and it works fine. Had to lenghten the slot in the pin that the retaining pin goes through so that the pin retracted far enough. Cut a piece of coil spring from a ball point pen and used it as a firing pin retractor. Don't know how long it will hold up but works fine. Hopefuly will keep pin from breaking in the future. Gun goes bang when you pull the triger now. I have some more fitting to do on the front globe sight and then need to sight it in and see how well it shoots. Interesting project. Thanks for the assistance!