American Rifleman: CMC Triggers Goldfinger

Unlike many similar AR-pattern drop-in units that employ aluminum housings, the hand-assembled and hand-tested Goldfinger is made from a combination of 8620 alloy steel and S7 tool steel, and the blade itself features a golden Cerakote finish.

https://www.americanrifleman.org/content/preview-cmc-triggers-goldfinger/