The ALG Defense AR-15 LOWER PARTS KIT W/ ACT TRIGGER delivers a reliable, ready-to-build solution for precision-minded shooters seeking consistent trigger feel and smooth operation in their AR-15 platform, combining ALG Defenses renowned ACT trigger with a complete lower parts kit designed for straightforward installation and dependable performance. Engineered to pair seamlessly with AR-15 receivers, this kit provides essential components that promote crisp, responsive firing follow-through and a balanced trigger pull that helps improve accuracy across a variety of shooting scenarios, from target practice to field work. Built to endure demanding use, the ACT trigger delivers a staged, controllable feel that enhances control during dry-fire training and live-fire sessions, while the rest of the lower parts are crafted to tolerances that support reliable cycling and fitment with compatible components. Whether youre upgrading an existing rifle, building a custom AR-15, or refreshing worn parts, this kit simplifies the assembly process and ensures you have the core pieces needed for a trustworthy, improved shooting experience. Designed for compatibility with the AR-15 platform, its a practical choice for builders seeking a cohesive, high-performance upgrade that aligns with precise, repeatable results.