WHAT DOES FRT-15L3 MEAN?

I have attempted quite a few unique forced reset triggers, beginning with rare breeds unique. Once the ATF commenced knocking on doorways however, I disassembled it, grinded it up and tossed it during the trash as I failed to have to have any drama from the lawfully purchased trigger. Anyhow, these triggers are great. The FRT-L3 is the best I've us