So I don't think Glocks are present in 'far more' mass shootings, handguns yes, but not handguns are Glocks. (I would ban Glocks for a lack of positive safety, but that's just me) From what I've read handguns are present in many mass murders but their usage is generally AFTER the long gun/shotgun was used.
The 'paradigm' isn't nut cases as most mass murderers are not nut cases but rather 30 something white males out for revenge or targeting a group they hate.
Defining unusually dangerous is opinion not a real standard. Has California's bans been struck down? I believe a weapon can be modified without a ban. Fixed magazines perhaps. But I also think the decision doesn't rest with either extreme. The majority will decide, not the industry, and the courts will decide if it passes whatever paradigm. (I call it Constitutional muster)
Personally I wish the Republican't Senate hadn't blocked use of the terrorist watch list as part of the back round check, that reporting and maintaining the lists was done more often and professionally. Health care providers subject to criminal penalties if they cover for violent patients.
But we have had this discussion repeatedly...
eace