Greetings,
I bought one of the eBay specials.
Very nice machining.
However, when you close the slide to stop the powder and then unscrew the hopper the slide bumps against the tool head and opens. Thus, dumping powder all over.
Now my glass hopper sits on the bench until I get bored enough to machine a fix for it.
Also, the threads were incorrect. The Star hopper is a 9/16-27 TAPERED thread. The eBay vendor chose to use a 9/16-27 STRAIGHT thread.
Yes, it sort of screws on; but, over time it will damage the thread on the powder housing cover.
Cheers,
Dave