Via; The Firearm Blog
The FBI has released a request for proposal for new 9mm semiautomatic handguns, in four categories. The RFP lists these as full-size, compact, Simunition trainers, and inert but articulated “red gun” trainers
I still have a fondness for handgun rounds starting with .4, but I figured a long time ago that a 9mm with modern hollow points will serve me better. The FBI brings the science to that decision.