The Larue Tactical MBT-2S Two-Stage Curved AR Trigger is the ultimate upgrade for AR10 and AR15 rifles replacing any mil-spec lower receiver trigger with top-tier performance. Crafted from precision-machined S7 tool steel this trigger offers unparalleled durability and a glass-smooth operation ideal for competition shooters and demanding battlefield conditions. With a crisp 4.5 lb break (2.5 lb first stage and 2 lb second stage) and an additional "heavy" spring for a 6 lb pull weight option it ensures consistent and positive resets every time. Reliable rugged and hyper-accurate the MBT-2S is engineered for excellence in every pull.