No, but we did see him cough up lots of blood after getting shot point-blank in a vital area of the body. I doubt that Robles and his merry band of drug traffickers would be quick to take him to the hospital.
It's TV. Getting shot will just make him get soft for a few days.
I'll be damned. The gunshot will indeed only make him soft for a few days, maybe even just a couple in his case. He'll be up to run a half-marathon in a week. It was good to see some restraint in this otherwise kill happy series, though I wouldn't want to see Buckley come back next season as a zombie.
I thought it was a pretty good finale overall despite there being more coincidences and instances of great fortune to wrap it up than I usually care for in serious dramas.