The Aero Precision AR15 Complete Lower is a fully assembled lower receiver for AR-15 rifles, designed to provide a ready-to-use foundation for building a complete firearm. As a complete lower, it includes all the necessary components, such as the lower receiver itself, trigger assembly, safety selector, magazine release, buffer tube, buffer, and stock. It is fully assembled and ready to pair with a compatible AR-15 upper receiver, eliminating the need for additional parts or assembly. Constructed from high-quality 7075-T6 aluminum, the Aero Precision AR15 Complete Lower is precision-machined to Mil-Spec standards for reliability and compatibility. It features an ergonomic design, with options like Magpul MOE or MOE SL furniture for enhanced comfort and handling. The trigger group is typically a Mil-Spec single-stage trigger, offering a consistent and reliable pull. Finished with Type III hard anodizing for corrosion resistance and durability, this complete lower provides an excellent balance of quality, functionality, and ease of use for AR-15 enthusiasts and builders.