G2S TRIGGER – The Geissele 2 Stage (G2S) semi-auto-only trigger drops into your AR-15 to give much of the performance and reliability of Geissele’s proven SSA trigger at an economical price. Features a 4½ lb. total pull weight, non-adjustable sear engagement, and a 2½ lb. first stage. Made of the same tool steel as the SSA with wire-EDM cut engagement surfaces. G2S uses a different method to retain the hammer pin, different pins, and lacks laser marking.