NOT KNOWN FACTS ABOUT RAREBREED TRIGGER

Also anybody know a person who does great engraving that will make me a 3rd position marking over a Aero M4E1 lower to match the Protected and hearth markings type it has? Or a decent vinyl sticker that can go there if all else fails.I'd an notion for any trigger that was a loop and could well be neutral in the center, but fireplace when pushed in