I've carried a lot more expensive sidearms than Taurus, but they've all been considered tools;I did like the HKp30, but it was a polymer frame and wasn't exactly my cup of tea
I do own a striker fired Glockalike19;Got it for a higher capacity semi auto to carry during the rowdy season and it's a good SHTF carry when the time comes.Glock mags are everywhere indeed
Not that I know of;The KNS kit runs off of a standard AR lower receiver.There was a M34 belt fed upper that was pretty interesting that also ran off of an AR lower