SIG MCX Adaptable Trigger (Two-Stage)Available in our Adaptable model (2. 5 5. 0 lbs). The SIG MCX Trigger is built for top competitive shooters to offer the most accurate and dependable trigger on the market. Featuring Zero Creep Technology, this drop in AR trigger has a short, two stage action, designed to feel like a 1911 trigger, that provides a true zero creep break, extremely short overtravel, a sub 0. 015 tactical reset and offers outstanding reliability. Pull weight range of 2. 5