First I don't want to start a debate about I love Glocks or I hate Glocks, please don't vent or brag here. Wanted to hear what has cured your erratic ejection, only. My Gen 3 G19 "S" serial# 3/2012 test fire date gun was cured with a Glock installed non-dipped #2 extractor and a 30274 ejector. Please keep all posts to: 1. Glock 17 or 19 late Gen 3 or Gen 4. ONLY manufactured between 2011 and 2012. Ok 2010 if it has one of the following serial numbers. 2. Serial numbers starting with P, Q, R or S. 3. Erratic ejection 100% cured. 4. If you have one of these and don't have any ejection issues, what extractor/ejector do you have? Reason being is that I haven't heard a definite, this will fix it. A combination of OEM Glock extractor and ejector fixed mine. Let's see if we can put this to rest.