My drop-in CMC Two Stage Curved trigger has a 2-pound first stage and a 3-pound second stage. It comes in other pull weights—2/2, 1/3, 2/4 and 2/5 pounds—and each is creep-free and offers a crisp break. Models are available for small or large pin sizes.

https://www.athlonoutdoors.com/article/ar-triggers/