Accuracy won't be the issue.
You hear different things about lead through Glocks.
I ended up getting an aftermarket barrel for mine, for peace of mind.
"As was the man of dust, so also are those who are of the dust, and as is the man of heaven, so also are those who are of heaven. Just as we have borne the image of the man of dust, we shall also bear the image of the man of heaven. "