With a fast reset, a smoother, crisper, lighter trigger pull, The single-stage trigger group is easy to install. Single-stage 3.5- 4.0 lb. pull weight. Quick reset for faster response time between shots. Lightened trigger pull with super-crisp release to improve accuracy. Curved skeleton trigger function and comfort. The self-contained design makes it easy and quick to install with no fine-tuning needed. Quality 17-4 Stainless steel hammer, trigger, and disconnect. Precision CNC and EDM machined from high-grade 6061-T6 aluminum and 17-4 ph SS. Contained in JMT’s signature metallic silver anodized aluminum housing. Note: The set screw should not be tampered with. Any attempts to modify the trigger will void the warranty.