Jarhead7173 said:
I took the slide to a machinist/welder who specializes in pistols, but he is reluctant to touch it as he/we don't know whether the slide is forged or cast, what the carbon content is, etc.
I'm sorry to hear that Sphinxarms went into bankruptcy... (I had not heard that, but I had also NOT gotten any emails from Kriss reps over the past 6-7 months, when we had been communicating more regularly prior to that. I had one of the SDPs on loan for evaluation and review, and later bought it from them.)
Sphinx built superior weapons. The newer line of SDP guns (and the related 3000 series) were redesigned to be more easily and efficiently produced using a higher level of automation -- as the expert hand work that made the older Sphinx pistols so unique was one of the things that made the Sphinx line so expensive to produce.
That the slide cracked was surprising, and it's sad that the firm went under before you could get a replacement.
Every one of the older Sphinx guns I've owned, seen, handled, or read about here in the U.S. had a forged frame; there may be exceptions and I may have missed something obvious. The 2000 series guns were made of stainless steel, and
cast stainless slides or frames in handguns seems to be relatively rare. As I understand it a cast slide simply wouldn't make sense as the slide is the part that takes a real beating, and forged from billets is the way to go for most larger caliber slides.
The fact that the slide is stainless might present unusual issues for your machinist, but it should also give him some idea of the slide's metal content. The slide and frame should be the same. He might be able to experiment with a less sensitive area of the frame (like under the grip) to see what works.
I wouldn't be surprised to see the Sphinx line come back to life AGAIN one of these days under different management. There's a mystique associated with the name and the design, which was, in effect, a CZ on steroids.
If you choose not to get it repaired, you might recoup some of your original cost by parting the gun out -- barrel, frame, internal parts are all now made of unobtainium! But talk to your specialist:
what do you have to lose? I'd probably tell him "do your best, and I won't fault you if you're unsuccessful!" Your 2000 series Sphinx is just a beautiful paperweight if it remains unrepaired or if the specialist can't fix it. If he can fix it, you'll at least have a working (if slightly less beautiful) weapon.