LJ’s Liberty Jig is a tool designed for completing 80% lower receivers for the AR-15 platform. The jig is made from high-quality aircraft-grade aluminum and is designed to be used with a handheld router. It is compatible with all 80% billet and forged lower receivers for the AR-15 platform. The jig comes with a comprehensive manual to guide the user through the machining process. The Liberty Jig is designed to be easy to use and features an integrated drill guide and depth stop to ensure accurate cuts and holes are made. It also includes hardened steel drill bushings and alignment pins for precise placement of the drill bit. Additionally, the Liberty Jig includes a quick-release locking mechanism for easy and secure attachment of the lower receiver. The jig is reusable for multiple builds and is backed by a lifetime warranty from LJ’s.
Compatible Lower Receivers
| Platform | Description | Approx. Cost | URL |
|---|---|---|---|
| AR-15 | Forged 7075-T6 Andodized (Mil-Spec) | $74.99 | 80% Lower Fire/Safe Marked (1-pack) |
| AR-15 | Billet 6061-T6 Anodized Black (Mil-Spec) | $89.99 | Premium 80% Lower Fire/Safe Marked Billet |
| AR-15 | Forged 7075-T6 Aluminum (RAW, Mil-Spec) | $59.99 | 80% Lower Fire/Safe Marked Raw |
| AR-9 | Glock Compatible 6061-T6 Billet Aluminum | $129.99 | AR9 80% Lower – 9mm – Billet |