Okay, as T7 said, if you aren't Skladfin or Cerealmaniac you need to butt out.
Second, I don't know what the OP wants from this? Right now this thread is exactly what it was initially described as: a rant.
I also don't know what the original terms of the deal was. Reading the sales post, it sounds like the gun had problems from the start: how much of it was disclosed, I don't know.
The stripped screw is shitty but its an easy fix.
The snapped connector, too (I've had a few broken ones myself, through no other cause than normal wear).
The bushing thing is just weird, I have to admit (even if it works, its like driving around with one of those half sized spare tires).
Is there anything else?