We took my wife’s new Ruger LC380 out today and overall it performed well. We put about 100 rounds down the barrel. It shoots a lot lower than I am used to with my G19, but that will just take some getting used to, and it is my wife's not my worry about the aim point. She is getting the hang of it, and is learning its aiming.
My wife had a few failure to eject/failure to feed, but I think that is combination of new gun break in, and grip. I never had a failure to eject or feed when I shot it, so I think it is the grip or possible limp wristing.
Now the issue. The slide does not always lock back on an empty mag. The interesting part is it only had the problem when my wife was shooting, it never happened with me. However I found when I manually operated the slide, I could make it malfunction happen. When I racked the slide, if I put slight downward pressure on the back of the slide while racking it, it will lock back every time. When I rack it and place very slight upward pressure on the back of the slide (very slight) it will not lock back, and now It only came with a single magazine, so I am not sure if it the magazine itself, or if it something in the gun.
After taking it down and looking closely, I found that the slide lock back sticks down. With the magazine out, it has great “spring” but when I insert a magazine (full of snap caps), and push them out, the lock back sticks down, failing to rise and engage the slide when the mag is empty.
Has anyone else seen this, or does anyone have suggestions?
Edit: I took the gun down, including the magazine and I think I fixed the problem. After looking closely at the spring in the magazine, I simply flipped it over (not top for bottom, but left for right). This allowed the high side of the spring to press up on the follower a little bit better. It still stuck just a bit, so I added just a drop of oil to the slide lock back and worked it up and down. I felt it loosen up a bit, and after inserting the magazine back into the gun, I was able to cycle some snap caps, and could not get it to not lock back. It seems to be perfect now.