Originally Posted by
SA80Dan
On my first AR (horribly overgassed M&P15), my ejector spring got battered so much it broke in 3 places. I noticed something was wrong when the ejection pattern switch to nearly 12 o'clock, but weak with it. It was easy to push down on the ejector with my little finger - I then had to dig the spring remnants out with a pin.
Replaced it with a sprinco part and it's been fine ever since (although since I took to building my own rifles years ago, I rarely shoot that one anymore as even with heavy buffer and spring, it's still a lot snappier than it should be). When I get round to it, I'll ditch that barrel and replace it with a better one.