Sorry been busy, couldn't find the listing but I got them on fleabay. They are 1/2 inch round by 1/8 inch thick, the hole fits a #4 screw. I bought them to use as battery connectors. Just be aware the poles are on the surfaces not the edges.
I plan to post some pictures but will try to quickly explain my button theory:
1. the pos connects directly to the top cap to the center pin. No issues there, just check for ohms should be 0 on top cap.
2. the fire button for the batt neg.......
when installed the battery neg side sits on the delrin piece
on my stock 19 mag button, when removed and pressed all the way the magnet sits above the delrin so....
if left this way the magnet on the button will contact the battery putting batt neg to the button and if no side contact is made misfire
if side contact is made after batt contact most likely spark if a device is attached to the 510 (similar to connecting car battery posts.) The batt voltage is not enough for a shock to most hands but I am sure the visual spark will scare the .... out of most people. I have seen it and it is a very visual spark in low light.
If you look at the switch dis-assembled you can see the inner rim on the locking ring. proper function would be the neg batt connection through the mag post, to the button, to the rim of the locking ring providing neg to the tube... 510. The locking ring must make good connection to the body, (unlocked position,) check it with a meter try to get it to 0 ohms if not already, measured to the part that screws into the body. I do not have a spring top but it looks like if the fire button is pressed to the top (rim of locking ring) the spring will take up the slack (slightly pushing up the battery) for the button to contact the locking ring. But, many say the spring damages the batt top?
IMHO the proper setup is..... I put a SS locking washer on the unscrewed button, it fit snug around the raised part the mag post screws into, the lock washer the same thickness as the amount the mag sticks up above the button.
With the washer, when the button is pressed all the way the magnet is even with the delrin. What this does is, now the button makes firm contact with the iner rim of the locking ring at the same time as the magnet contacts the other opposing magnet attached to my batt neg. Never a misfire, never a spark.
I switched to the nylon washers around the magnet so I can tighten the tube. There is a gap I covered with an O-ring in for looks. In my original pics with the softer material around the magnet the O-ring served a purpose maintaining the gap.
So far my 19 is working
flawless with only adding
1 magnet
2 nylon washers (only because they were thin and free, I save too many things lol)
1 ss washer (had that too, maybe ACE hardware? they have lots of pieces)
I will try to get some pics later this week
Did you get the Brass 19? There is a long thread for Sigelei tips tricks which might be able to help if your button is glued. I was lucky mine was not.
Thank you though!
