【unicorn】uns3352 's Japan Review

This is my first purchase of a shaft from Unicorn.
I bought it because I liked the cool silver alloy on the flight side and the gradation on the barrel side.
However, the threads were too big to fit my PUMA barrel and JOKER DRIVER barrel.
The shaft doesn't fit all the way to the end and is sticking out.
The design is perfect, but I am a little disappointed.
Is it for hard barrels?