The Stern Defense H2S Drop-In Trigger is a premium two-stage upgrade for your AR-10 or AR-15 platform. It features a robust aluminum construction with a unique Dust Green/Silver finish, providing superior lubricity and corrosion resistance. Engineered for precision, it offers a smooth first stage and a crisp, clean second-stage break to improve accuracy and follow-up shots. Its drop-in cassette design ensures quick and easy installation.