Chambered round indicators
A whole lot of people wouldn't know one if they saw one.
Magazine release safeties
I'm not sure I see the utility of such a thing.
Heavier trigger pulls
Guns with “light” pulls are more likely to fire when dropped, or when they snag on a piece of clothing.
I'm not sure I agree with this either. The case of the NYPD and their ridiculous 'stupid heavy' trigger pull seems to speak against this idea.
Grip safeties
Most handguns have a manual safety — a switch, button, or lever that must be disengaged to allow the gun to fire, even when a round is chambered. But some models also have a grip safety: a lever on the rear of the gun that must be squeezed with the flesh just below the shooter’s thumb to allow the gun to fire.
I have no problem with them, however, I'm not sure they're necessary on a firearm that already has a manual safety.
Firing pin blocks
Firing pin blocks prevent a gun’s hammer from striking the pin unless the trigger is pulled to move the block out of the way.
I have no problem with them, so long as they're mechanical.
There are no governmental regulations on the manufacture of firearms. None. There are more than 30 regulations pertaining to safety applied to the interior of automobiles. None on firearms. As a result deaths and injuries in auto accidents have fallen to a level below that of firearms and continue to fall as gun injuries rise at 1-2% a year.
I'm pretty sure you're comparing apples and oranges here - comparing deaths and injuries in auto accidents, with something other than deaths and injuries in firearm accidents.
Not that it surprises me.
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