FRT TRIGGER FOR SALE NO FURTHER A MYSTERY

Also anybody know someone that does brilliant engraving which can make me a 3rd placement marking over a Aero M4E1 reduce to match the Safe and sound and fire markings model it's got? Or a good vinyl sticker which can go there if all else fails.I lightly bent the faucet forward this evening, removed the H3 buffer and spring, but tab however is just