I have been telling anyone and everyone who will listen that todays Sig Sauer is not the Sig Sauer of old. Their overall quality control is not the same. The quality of the parts and the materials are not the same. The skill level of those who are building the pistols on the line are not the same. They are not running the same playbook anymore. They are a modern high volume move the metal at all cost type of company. Most people don't listen anymore.
I believe the last time this was discussed in detail the OP stated:
I like the German, West German, and American made SIGs. I feel people are blowing this way out of proportion and turning minimal differences into extreme differences in deciding factors. It's not life and death. They're great all around.
If it has a folded carbons steel slide, it's lighter and more prone to rust.
If it has a stainless steel slide, it's heaver and less prone to rust.
You'd think we're comparing polymer to stainless steel or something. It's the same company which a few minor differences. If you come across any issues, like any other gun manufacturer.. Just get it resolved. It's not like they're more prone to spontaneous combustion. Geez.... Relax people...
Either or will serve you fine.
Seems sort of ironic to read those words against what has been posted here. I believe that warranty or no warranty that the gun should be replaced. I will take the OPs word for it that Bruce Gray has confirmed it to be a side production issue. I cannot tell anything from the pics. The markings on the barrel are odd. Not the normal Sig smiley and the markings inside the frame matching the marks on the barrel are odd. It is a bad CS move by Sig but it is well within the written warranty.
Anyone who had bought, sold and handled hundreds of Sig pistols at the store they worked at should know that buying a Sig used voids the lifetime warranty. Most of the time this will never come into play but in this instance it did. It does not matter if the gun is 1 month old or 30 years old. Age of the pistol does not come into play. Round count and maintenance does IMHO. If you take the OP at his word about maintenance and round count the age of the gun is irrelevant.
Sigs CS is spotty these days. Sometimes they come through sometimes they don't. A lot depends on who you get on the phone, how you ask for service and what you need done. If you don't get the answer you want you can sometimes call back get a different rep and get the answer you want.
I think the OP knows that Sig has never warrantied bought on the used market except for CPOs. In the past some people have been able to get "used" Sigs repaired but it is not their norm nor is it their policy. Anyone who buys a lot of used Sigs should know this going in. Bruce is a great standup guy but he is going to press only so hard. He has a relationship with Sig that is more important than an individual pistol. I cannot see him putting that on the line to get an out of warranty replacement for a customer. In the end Caveat Emptor is 100% in play not matter what used gun you are buying. It is not just Sigs. Some are better, SA, S&W & Ruger come to mind, some are worse HK comes to mind. Buy accordingly.
I would give it one last ditch effort to get them to replace the gun. Call. Ask for a manager. Tell them you are a loyal Sig guy used to work in a shop and used to move the metal etc.... Be calm and be polite don't threaten just ask. If they still refuse to fix it strip it down and sell it for parts. Life is too short. I also think it is a shame you threw the baby out with the bath water. I would have kept the working Sigs. I did when I stopped buying their new guns a rule i did not break for almost 10 years.