Several months back a stink arose the LE agencies who issue the FNS. Pistols had a bad habit of going "bang" unexpectedly, including when they were simply sitting loaded in a holster. FN quickly came up with a factory fix and will rapidly take care of one presented to them for repair. In my case, they paid for shipping both ways as well as quickly taking care of the repair, all at no cost to me. If you have a FNS best to contract FN US promptly, provide the serial and let them take it from there.