Go straight the fuck to jail and remain there for rest of your miserable lives.

A full auto (machine gun) fires as long as there is pressure on the trigger. A semi-auto fires one bullet for each pull of the trigger and the trigger must be released before being pulled again. Machine guns are under the National Firearms Act that requires a tax, reallllllly strict background check and must be registered to the owner with the ATF.

First was the bump-stock that used recoil to push the gun away from the trigger finger to reset the trigger. Okay, Trump outlawed that.

Then came the 'auto sear' that allowed the trigger to automatically reset and made the gun full auto.

Now there is the 'forced reset' trigger. The mechanism actually pushes the trigger forward against the shooter's finger to reset the trigger so it technically resets the trigger between each shot. The shooter just puts pressure on the trigger and holds it (one trigger pull) and the gun forces his finger off the trigger. Technically it is a semi auto because the trigger is "released" after each shot when the finger is shoved forward by the gun.

The reasoning goes like this,"The gun fires one bullet per trigger pull because this little thingie here shoves your finger forward and then that thingie lets the gun shoot again but you don't have to take your finger off the trigger so it's not a machine gun because of the thingie."

I think all semi autos, pistols and rifles, should be placed under the NFA. Problem solved.

When the makers of the triggers originally ran the specs thru the ATF, the ATF correctly said -- in writing -- the triggers are not machine guns and thus are legal for sale. Years later the ATF changed their mind.

Federal law is quite specific on what a machine gun is per the law written by Congress. (Surprisingly, they got it right.)

The ATF does not have the authority to change/update the law. That is the job of Congress. If Congress wants the triggers to be considered as machine guns, Congress has to update the laws.

Changing it's mind shouldn't make criminals out of those that bought/solt items in original good faith.