I agree with Etype for the most part. But I do have to be honest, The Army has wasted too much time and money already. It's a fucking pistol, who gives a fuck, make it light weight, reliably, trainable, good service life and be done with the bullshit. S&W vs Glock, 1911 vs Pick your polymer poison, etc. They're really dumb arguments to be having in 2016. As I've said before, there is no super new advance in pistol technology, some of the most respected firearms and bullets are century old design's.
What has been proven time and time again, is that .45 acp will not "knock down a 200lbs man" because its slightly larger in diameter than a 9mm. Things like well trained people vs "you'll never see your sights so practice point shooting" types. I liken it to the "most lethal karate experts of the 1980's" it's time to stop spreading bullshit and get with the reality.
Glock 19, is the right choice, its cheap, it works, its easy to work on, and its easy to train people to use. And yes, all the untrained dirtbags will shoot themselves, have ND's and big mother Army will come up with some gay shit to counter it vs kicking out dirtbags and properly training soldiers. But what the hell, at least the soldier who actually needs a pistol, will have something reliable, light weight and accurate.
Its crazy, I've been on this forum for 8 year's and this was a topic that actually brought me to SS, 8 year's later, different thread but same comments.