My early model FNP needed service on the decocker after...ohhh....10,000 or so rounds. Anyway, email contact was made with FN USA and the support was great. Same day after I transmitted them the data electronically, I received the shipping data and electronic tag to print and put on the box....they paid shipping both ways.
About a week after they got it, here it comes back to me.
100%. If they didn't replace the slide, they at least refurbished and refinished it...I'm impressed.
No charge. I would say they were very responsible as a manufacturer standing behind their product.