The 667S-ST model by Timney Triggers boasts meticulously-crafted triggers featuring spot-on machining and craftsmanship. Every single one is hand-tested and calibrated, ensuring peak functionality. Its key feature is an AR15 Competition Trigger that is set and ready for mounting in your AR. This delivers a luxuriously smooth, crisp, and completely creep-free single-stage trigger pull.All the individual components are beautifully unified in the lightweight housing made from aluminum alloy. The inclusion of an hammer, expertly wire-EDM machined from S7 tool steel, along with an EDM cut from A2 tool steel, significantly adds to this model\'s rugged reliability.Perfectly compatible with your AR15 firearm, this trigger model includes a small pin, rounded off with a straight trigger for simpler use and operation.