Stern’s H2S was developed with PCC shooters in mind. According to the company, it was created to bridge the gap between mil-spec-style and high-speed, low-drag competition triggers. It’s a two-stage unit with a 2-pound first stage and a positive 4-pound second stage engineered to finish with a crisp break and predictable reset. The duty spring is intended to remove the possibility of bump-fires or failures to reset sometimes seen in a PCC. The H2S’s poundage can also be stepped down with the included “green spring” for use with AR-15 and AR-10 rifle calibers.