@ jdl447 (or anybody else who knows):
Do you know what thread the magazine end cap is? I plan to have a longer one (+1 mag extension) made, but I don't know the threading. I'm not even sure if it's imerial or metric, or something completely different.
"I disapprove of what you say, but I will defend to the death your right to say it"
- Evely Beatrice Hall, often misattributed to Voltaire
I think I'm thinking, therefore I may possibly be.