Expo Arms Mil-Spec Builder AR-15 Lower Parts Kit

Overview

The Expo Arms Mil-Spec Builder AR-15 Lower Parts Kit provides a foundational set of components for completing a stripped AR-15 lower receiver. Manufactured in the United States to Mil-Spec dimensions, this kit is designed for drop-in compatibility with standard lower receivers from various manufacturers. It serves as an ideal solution for new builds or as a supply of spare parts for field and range repairs. The kit includes the safety selector with detent and spring, bolt catch with roll pin, detent, and spring, magazine catch with button and spring, takedown and pivot pin assemblies with detents and springs, and the buffer retainer with spring. Please note that the pistol grip and fire control group are not included, allowing builders to select their preferred components. All Expo Arms parts are backed by a Limited Lifetime Warranty covering defects in material and workmanship, as well as normal wear and tear.

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