The Polymer80 AR15-G150 Lower Build Jig is a high-quality, precision tool designed for completing the AR15 80% lower receiver. Engineered to deliver professional-grade results, this jig provides clear, easy-to-follow drill and milling guides for accurate alignment and consistent performance throughout the build process. Crafted from durable, high-strength materials, the AR15-G150 jig is built to withstand repeated use, making it a reliable choice for both beginners and seasoned firearm builders. Whether you’re constructing a custom AR15 or honing your gunsmithing skills, the Polymer80 AR15-G150 Lower Build Jig simplifies the process, ensuring a smooth and efficient build with exceptional results every time.