Description
80% .308 Easy Jig® Gen 1
The 80% .308 Easy Jig® Gen 1 is a patented router jig engineered to make finishing 80% AR-308 lower receivers easier, faster, and safer. This jig provides DIY builders and gunsmiths with a reliable and precise platform to complete their .308 lowers with professional-grade accuracy using a handheld router.
Key Features and Specifications
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Patented Design: Purpose-built for the AR-308 platform ensuring precise milling and drilling of critical cavities and hole locations.
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Built-in Depth Gauge: Integrated depth control for smooth, accurate milling of trigger pockets, fire control cavities, buffer tube wells, and more.
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Compatibility: Works with forged and billet 80% lowers designed for the .308 DPMS Gen 1 platform.
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Made from CNC-machined 6061-T6 Aluminum: Durable and rigid construction provides stability throughout the milling process.
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Easy-to-Use: Clamps easily in a vise and guides the router for controlled, repeatable cuts.
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Complete Milling System: Includes all necessary hardware, guide pins, and templates to ensure users finish their lowers correctly.
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Time Efficient: Milling with this jig can be completed in under an hour with proper technique and tools.
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Made in the USA: Quality manufacturing and strict quality control give builders confidence and peace of mind.
Usage and Benefits
The jig simplifies the complex 80% lower finishing process, allowing users with moderate experience to perform milling tasks typically requiring advanced machinery. It supports making precise internal cavities and holes necessary for AR-308 functionality, enabling smooth assembly and reliable firearm operation.
Users benefit from a safer milling setup without the frustration of inaccurate measurements or unstable router operation. The jig’s design gives consistent results, leading to higher build success rates.
Packaging and Support
Securely packaged with detailed instructions and all hardware included. Polymer80USA supports this product with warranty service, replacement parts, and expert technical assistance.
Why Choose the 80% .308 Easy Jig® Gen 1?
This jig stands out for its patented design tailored specifically to .308 lowers, combining accuracy, ease, and speed. It is an excellent choice for builders wanting to complete .308 caliber 80% receivers at home without CNC machines or drill presses but still achieve professional results.




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