Every time I work on a colleague's gun for any reason, it is dry like the Sahara. Sometimes they are a little gummy and tacky, which makes me think that at some point they oiled the gun, but then never oiled it again. I realize that pistols don't require gallons and gallons of oil, but come on guys!
Every time I see a student's Glock start malfunctioning, one of the first things I check for is any oil at all. Usually it is the same story, zero oil anywhere on the moving surfaces of the gun. Those malfunctions haven't really evidenced themselves as much during standard traditional stance shooting, but rather from more compromised positions, including retention type shooting.
I showed several students a properly oiled barrel, and most of them indicated that they thought it was too much oil! I still can't figure out where they got the idea that guns wouldn't need oil. For some I think it is a military left-over, where guns had to be completely spotless to get turned in, but I don't know what to think regarding the others.
So if you're reading this and you own a Glock, can you please put some oil on it? Specifically on the outside surfaces of the barrel where you see wear marks. Put a small amount on the running rails, and another small amount on the connector. It doesn't need to be dripping off, but when you lock the slide to the rear and look at the barrel, it should definitely be shiny.
