This one is called Akiza V2.
The cap is funny and I love spinning it. It is balanced and very smart. Specs are classic, something like 20g and 14g. Like a watto g3 lol.
It is easy to break the metal clip by bending it with a plier.
The tutorial is still unreleased, but since the picture is neat enough, I think you can try making a replica 🙂