Are forced reset triggers actually legal and for how long?

[50 cal]

I have one and it's a hoot to fire. Anyone that wants to try it at the range, I let them as long as they furnish their own ammo.

[Eddie Southgate]

In my opinion they are legal  The ATF letter is their opinion , not necessarily a law. They get to give recommendations and opinions but they are law enforcement not law makers. Making this illegal should require a bill to pass thru both houses and be signed by the sitting president. That's my opinion but it is not how it will play out. On the government level (current) everybody will eventually agree that the ATF opinion is correct and therefore is already law so needs no further consideration. There again, that is just my opinion.  They are a bump stock in trigger form and neither one makes a gun an actual machine gun. 

[Darrell]

3 hours ago, Eddie Southgate said:

Making this illegal should require a bill to pass thru both houses and be signed by the sitting president.

It's criminal that the US is no longer governed according to the Constitution. You are correct that laws are to be made or rescinded by the congress, NOT by the executive branch, and certainly not by unelected bureaucrats working for the executive branch. I blame the members of congress who long ago passed along their constitutional duty to executive branch departments like BATF, CDC, EPA, etc. The people are supposed to be able to fire those in government who don't respond to our will, but no longer can.