Tac-Con™ 3MR Trigger System Update
They’re taking pre-orders for it now. It comes in at $500.
Here’s the ATF determination letter, which describes how the trigger operates:
… the reset lever pivots forward, and the hammer engages/contacts the lever during the cycling of the rifle. In this position, the hammer contacts the reset lever during cocking, which applies force to the trigger, forces the shooter’s finger forward, and allows the trigger to reset rapidly.