Introducing the Timney Alpha Competition ultimate builder's kit (UBK) for Glock Gen 3-4 - the ultimate enhancement package engineered to maximize your Glock's performance. Designed as a comprehensive solution around our Alpha Competition trigger platform, this kit includes meticulously fine-tuned components to deliver exceptional results. Each part, from the stainless steel striker to the heat-treated NP3 coated components like the striker spring, connector, safety plunger and safety plunger spring, is crafted to match the precise geometry of the Alpha Competition sear and trigger bar. Experience enhanced durability and smoother operation with the NP3 coating, which offers superior lubricity. The factory-set pull weight of 2.5 to 3 lb ensures a responsive trigger feel without compromising the Glock system's renowned reliability. Timney's commitment to quality shines through in every detail, providing shooters with an upgraded trigger that maintains the integrity of a Timney trigger while elevating performance.