What is the difference between a Binary Trigger and Gatcrank?

How is a Gatcrank Different from a Binary trigger or Bumpstock?

What is a Binary Trigger?

A binary trigger, also known as a binary firing system, or forced reset trigger is a trigger that fires one round when the trigger is pulled and a second round when the trigger is released.

What is a Gatcrank?

A Gatcrank, is a mechanical device that attaches to the trigger of a semi-automatic firearm and allows the user to fire the gun at a faster rate by continuously pulling the trigger with the assistance of a crank. The user turns the crank, which moves the trigger back and forth, firing the gun in rapid succession but allowing for the trigger to fully reset after each fire.

Both binary triggers and Gatcranks are regulated by the ATF and legal in some states but restricted or banned in others.

What is a bump stock?

A bump stock is a device that enables a semiautomatic firearm to fire at a rate similar to that of a fully automatic firearm. It uses the recoil of the firearm to move the firearm back and forth, allowing the shooter's finger to repeatedly hit the trigger and fire rounds in rapid succession.

Bump stocks were made illegal in the United States on March 26, 2019, following the approval of the "bump stock ban" by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).