Made for an FN 509. Will this work in an FNS 9c? Are the springs the same? Update I was browsing the forum and saw some recommendations for Apex triggers. They also sell "heavy duty strikers" and sell the same one for the FN 509 and FNS 9C. This leads me to believe the M*Carbo 509 kit will...

I recently bought the FN 509. I've only put just under 200 rounds through it and the trigger safety spring, held in by a retention rod, fell out. I cant find any info on anything anywhere on how this spring is supposed to go back in the trigger. any and all help would be appreciated! even if...