I hate to use the word "gimmick" as it has some negative connotations. But the modular FCG is just a step above a gimmick. IMO.
of the P320 in Army service
In 2000 I had the honor of partaking in various small arms evaluations. Of these guns, to include the SCAR, and several others of the like. Basically it was a continuation of the OICW program which was somewhat previously mothballed.
We also tested several different shotguns, and semiauto handguns, to include the Glock 17.
Even back in 2000, a replacement for the M9 was being looked at. One of these reasons was the success of police departments with the ugly glock in service.
Modularity has been one of the requirements of military service for quite some time. 100% parts interchangeability at the armorer level. .... Which for whatever reason the Glock does not qualify for. I argue that if the M14 qualifies, then so does a Glock.
In regards to a standard issue sidearm, although a one size fits all deal does not work well with handguns, I dont see a unit armorer, at will, changing grips for a soldier who just does not like how it feels.
Pistols of course in the military are more reserved for Service purpose units, medics, pilots and MPs, standard line units dont get issued pistols. In special purpose units, typically you could carry whatever you wanted as long as it was on the approved list.
Gimmick? I think so. I mean gun makers would not be able to stay in business without the introduction of new stuff.
Will the Ruger be as good as the Glock? Maybe, and since thats what the question EVERYONE is asking themselves in the background, why not just stick with the OG?