I have a 1st generation Glock 17 with a documented 98,769 rounds through her and she's in mint shape. At 31 feet using IMI/SAMSON Match grade ammo she still gives me 2.03" groupings.
I also have a Taurus PT-92 with 73,903 documented rounds through it and Taurus gave it a clean slate. Range accuracy using the same ammo listed above at 31ft was 2.17" groupings.
Both weapons are stock, no modifications. Springs changed Q5K rounds.
I also have a Beretta 92FS that is a Chicago PD trade in with unknown round count, but 31,079 rounds from me and accuracy is 2.35" groupings at 31ft using same ammo listed above.
I also have been using one of my three Norinco 1911's as a test bed for damage. It's had 66,866 rounds through it from every single .45acp manufacturer around and other than routing cleanings and spring changes, it's still going strong, and looks no different than the day I bought her.
I have a total of 78 1911's and 18 Beretta 92fs's plus numerous others many with thousands of rounds and I would NOT hesitate to carry any one of these for concealed carry.