I love my Glock 43 with the only downside being round count. I have 3-9 round and 5-12 round magazines from ETS that it all worked great. I haven’t heard negative things about those. I did hear of one or two incidents a problems with seven rounds. Now I’m here to confirm that my seven round mag also consistently fails to feed the first round when it is loaded with one in the chamber. Too much drag on the slide for proper ejection. Just wanted to let you guys now.