looks to be turned down on a lathe but not single point formed and possibly a tailstock die holder or just a diestock
it maybe concentric to the bore it may not but without the shoulder cut and shoulder for the silencer to rest against i doubt it'll be aligned well
Just put a thread protector over the mess that someone has made.
Neil
Current airguns:- Steyr LG110: Steyr LP10: Air Arms HFT500: Weihrauch97 fully customised.
A moderator screws into it no problem
Doesn't clip mate tried it
I am sure you don't need one either