Latch parts for LMT SOPMOD

I recently acquired a “ban” version of LMT SOPMOD - it has a simple screw going through the latch into the stock. Where can I buy all the necessary parts to get the latch working as a regular stock?

I would contact LMT http://www.lewismachine.net/contact.php
I don’t have any experience with a “ban” version stock or have seen one. Can you just remove the screw?

Here are the photos - it’s a very simple design of having a special receiver extension that has a drilled and tapped hole. There is a screw that goes through the latch, stock body and into the RE.
Screw removed, latch removed form body. You can see the holes for the screw in the RE

Another view how it all comes together:

I think your going to need a standard milspec re extension. The channel is different and diameter of detent holes looks to small. Mine measure approx .3010" I’m guessing yours are tapped 1/4"x20 (.250)

I know that I need a new RE. I think with the help of a member on another board, I finally figured the small parts I need to get from LMT in order to get just the stock working.