Excellent recommendation Greg. I'd plumb forgot about that issue. Since it's used it could very well have that issue.
Should be noted, if it is the case Kahr will take care of that. Also worth noting that when you had that issue the gun still ran perfectly and I recall you were reluctant to send it in for fear it wouldn't be as good when it came back. It was a happy ending for you and I'm sure it will also be for Glock5857 if its the same.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."