The Fostech Echo AR-II Binary Trigger allows the shooter to select from 3 different settings.

Safe Mode: Firearm will not fire.

Semi-Automatic Mode: Firearm fires when trigger is pulled.

Echo Mode: Firearm fires when trigger is pulled and also when trigger is released.

The Echo AR-II Trigger is designed with safety being the utmost priority. When the shooter is in the Echo Mode and depresses the trigger one round is fired, if the target moves, the shooter can move the selector to the safe position and a second round will not fire upon release.

NOT AVAILABLE FOR PURCHASE IN THE FOLLOWING STATES: California Iowa New Jersey New York Rhode Island Maryland Connecticut Hawaii Florida Washington State Washington DC Delaware: Binary triggers are sold for use in pistols and non-rifle firearms only.

Of Note: We do not accept returns on this product once the packaging has been opened