twist custom spring latch
but im going to explain it hopefully pretty well.
ok first i used a dremel and ground down half the length of the latch.
you could hit it on a grinding wheel or whatever but i used a dremel its what i had at the time .
ok when i mean ground down i mean the side with the holes "on the twist" and that the screw goes through
so now i have room to install my spring. i used the spyderco type cause it seemed simple
you can see it good on this pic.
anyway i done it exactly like that sept between the spring and the sides i made little aluminum washers out of a coke can with a hole punch damn im crafty hit them with a hammer and its pretty flat and a little lube works like a charm i did wrap the spring part that goes over the middle of the latch all the way around it so it would stay erect when popped lol
hope that helps everyone
oh making the spring was pretty simple i used a high e guitar string and wrapped it around a nail about the size of the screwand just bent it the way i wanted it took a few tries but i finally got it no problem
2 loops was plent btw
you could also use the spring from a pen i assume