I can attest the p250/320 grip. While it felt great, the grip seem cheaply made and scratched easily, and it did. However it function well and designed. Another gripe is the rail. It wasn't a 1913 rail. So any accessories attached had to be adjustable. Equally modular compare to the FNS. As I on occasion swap out my 9long for the 40 4". Which is why I think there will be a FNS 45.