Shot in an 8 stage local IDPA match with the FN 509 today. It ran well. Me not so much.
I used the two FN mags as my first mag loaded with 11 rounds and the Promags for the reloads (10 rounds).Had no issues with either mags or the gun. When I did my part accuracy good.
I don’t shoot semi’s often so it was good to have a Quiqqly moment. Having 10 rounds sure make stage planning different.
Two take always, but no hurry. I could use an extended mag release but am not paying $75, so I will build out an extension for the stock release. I will also build a jig so I can drill two witness holes in the Promags for 10 & 11. Just comforting to be able to tell if the mag is fully loaded or not.