WHAT DOES FRT FOR SALE MEAN?

I have tried using many unique forced reset triggers, starting with rare breeds authentic. Once the ATF started out knocking on doors even though, I disassembled it, grinded it up and tossed it from the trash as I failed to will need any drama from the legally bought trigger. Anyhow, these triggers are great. The FRT-L3 is the best I've used so far