The Polymer80 AR15-G100 Lower Build Jig is an essential tool for completing the AR15 80% lower receiver with precision and ease. Designed specifically for the AR15-G100 lower, this jig features clearly marked drill and milling guides, ensuring accurate alignment and consistent results during the build process. Constructed from durable materials, it offers reliability and long-lasting performance, making it ideal for both novice and experienced builders. The jig simplifies the process of creating a custom AR15 lower receiver, providing professional-grade outcomes while minimizing the complexity of the project. Perfect for DIY firearm enthusiasts, the Polymer80 AR15-G100 Jig is a must-have for crafting a high-quality, personalized AR15 build.