I can autococker thread you twist lock barrel and in some cases shorten it if you like $35
Freak boring service to make your barrel accept freak inserts. $30
If you get both AC thread and Freak boring done to the same barrel $60
return shipping $4
Shoot me a PM and let me know what barrel you have and what you want done. I might want you to send me a picture of the barrel before you ship it to me. so i can tell you yes or no.
These are machined on my cnc lathe. I have done over 50 and have not scrapped a single barrel!
PM me for info
Smarts barrel-shortened to 12" and AC threaded
Automag RT barrel- AC threaded
Crown Point- Shortened, AC threaded and freak bored