WHAT DOES FRT FOR SALE MEAN?

I have tried quite a few various forced reset triggers, starting up with rare breeds primary. In the event the ATF started knocking on doors although, I disassembled it, grinded it up and tossed it in the trash as I didn't need any drama from a lawfully acquired trigger. Anyhow, these triggers are magnificent. The FRT-L3 is the greatest I have util