A friend has a glock 42 .380 and he said he was having a lot of trouble with it cycling correctly. I said what type of ammo he said it was some type of steel cased and I told him that was possibly the problem, but I'd take it home and give it a good thorough cleaning and see if I could find anything that looked amiss. Well I brought it home tore it down completely cleaned the fool out of it and didn't see anything really wrong well other then it hadn't been cleaned really good. So I'm gonna load it up with what I know is good ammo a few different brands and see if it has any trouble with any of them. I figure possibly it was steel or aluminum cased or low recoil and that was probably all it was. Your thoughts on his problem