Well, I got my gun back today. It's been 4 weeks since I sent it off, so turn around time wasn't to bad.
They replaced the Barrel Link & Pin, the Ejector, and the Sear Spring. Total cost to me: $0.00
They didn't even replace my aftermarket guide rod and spring set. They did a Safety function check and test fire before sending it back as well.
The only bad thing is they didn't clean it first.
Oh well, I can do that myself.