Looks like you and I think alike, lol. .. im actually working on a reduced chamber top cap for zen devices right now, looks exactly the same except without the logo. Im also thinking of adding a groove for the o ring to hold it on better, that or mill out a second slot for an o ring under the first on the atty itself But the going is slow bc im doing it on a minilathe and its not the best.
I'll be very interest with your reduced chamber work! Keep posting here.
Yes, you can. I replaced my zag post with a brass one long ago
I'm gonna use the brass post that come with SW brass upgrade from you.
Since I own the 510SW I'm not using it.
Threads is the same but I think I have to make the length shorter.