I understand all the annoyance EXCEPT the magazine disconnect complaint.

You altered a factory design and then sent the pistol back to the manufacturer. Most any gun manufacturer in existence would do exactly the same thing (exactly) with one small exception… some of them would charge you for the replacement of the missing parts.

Same reason that you shouldn’t send a gun back to the manufacturer with any aftermarket grips or stocks either, because you might lose them.

Similarly, if you send an old-style Ruger Blackhawk for (any!) service at Ruger, they will put all the new safety related parts in to it. (word is that they do return the original guts, in a bag)

$175 sounds like a pretty good deal for a full bead-blast refinish on a 3rd Gen.