It's not the lifter spring, check.
Is this a safety or decocker?
Is the ejector all there? How about the slide stop retention spring? If a safety model, are all the safety detents and springs present? How about the trigger bar spring?
The slide damage didn't cause the frame damage but I agree that something might have been bouncing around in there.
Time to do a detailed inspection on all the parts.
Cheers,
Toby
Sent from my SM-G950U using Tapatalk