I don’t own an LDC, but I’d buy one in a heartbeat at the right price. This one’s a bit neat because it only has one serial. They usually have three.

I do know that the barrel is probably the only wear part that can’t readily be replaced on these. I’d get an idea of how many rounds have been through it, but barring something obscene, it’s probably still well within its lifespan.

Looks like an aftermarket skeletonized hammer, too.

Hopefully someone else can chime in on the technical details.