Mine did. I was getting FTE's (about 1 every magazine). Changing the LCI to Bruce's fixed that problem. Haven't had an FTE in about a thousand or so rounds.
Cheryl, using the rubber hammer only moved the LCI pin out about a sixteenth of an inch for me. It was just enough to grab the end with a...
1. About $20.
2. Stopped my stovepipe problem. I was having 1 every magazine or so, regardless of how clean and lubed the LCI was.
2 (als) I know when there's a round in the chamber.