80% .308 Easy Jig® Gen 1
$239.99
Finish 80% .308 AR lowers easily with patented Gen 1 Easy Jig. Durable, precise CNC aluminum jig with depth gauge for safe at-home milling.
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
Patented Design: Purpose-built for the AR-308 platform ensuring precise milling and drilling of critical cavities and hole locations.
Built-in Depth Gauge: Integrated depth control for smooth, accurate milling of trigger pockets, fire control cavities, buffer tube wells, and more.
Compatibility: Works with forged and billet 80% lowers designed for the .308 DPMS Gen 1 platform.
Made from CNC-machined 6061-T6 Aluminum: Durable and rigid construction provides stability throughout the milling process.
Easy-to-Use: Clamps easily in a vise and guides the router for controlled, repeatable cuts.
Complete Milling System: Includes all necessary hardware, guide pins, and templates to ensure users finish their lowers correctly.
Time Efficient: Milling with this jig can be completed in under an hour with proper technique and tools.
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.
12 reviews for 80% .308 Easy Jig® Gen 1
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Easy Jig® Gen 3 Multi-Platform – AR-15, AR-9 and .308 80% Lower Jig
Revolutionize your 80% lower builds with the Easy Jig® Gen 3 Multi-Platform – the world's easiest, fully universal router jig for AR-15, AR-9, AR-45, and DPMS Gen 1 .308 lowers. No adapters needed; patented Trident front pins eliminate misalignment, while quick-adjust rear support switches platforms in seconds. Finish any mil-spec lower (forged or billet) in under 90 minutes with a handheld router – precise, repeatable, and beginner-proof. Compatible with 23+ routers, lifetime warranty, and 100% legal for personal use. Ships direct (no FFL) to 21+ in compliant states. In stock at Polymer80USA.com – turn 80% receivers into functional lowers effortlessly.
Easy Jig® Gen 3 Tool Kit
Chloe Carter –
I bought another jig and lower from a competitor only to find it redbelly lacking. Ruined to lowers before I found 80%. Bought a lower and a gen one jig. I turned out a perfect working 308 rifle in less than a day. Thank you 80 percent. You have a customer for life. My next project it’s an ar-15.
Michael Adams –
I chose to burly the Gen 1 because of the price. All the way around, it was much cheaper than Gen II. I have not use it yet, but I did fit it together and it’s flawless.
Grace Green –
I bought another jig and lower from a competitor only to find it redbelly lacking. Ruined to lowers before I found 80%. Bought a lower and a gen one jig. I turned out a perfect working 308 rifle in less than a day. Thank you 80 percent. You have a customer for life. My next project it’s an ar-15.
Aria Nelson –
Great product fast shipping
Logan Allen –
I returned it and bought the Gen 2 Jig
Ella Young –
awesome product and service. i bought this because i already have a modulus heavy duty ar15 jig. this jig is everything you would want in a jig. makes flawless 308 lowers if you take your time and watch what your doing. my first lower with it was used to build a 6.5creedmoor and it is perfect and shoots sub moa groups out to 1000yards. Buy this jiRead more about review stating easy jig gen1g. i bought some upgraded tooling from american gunsmithing and id buy another jig if i needed no questions asked.
Henry Hill –
Your product worked very well and I finished my lower in about four hours.
Benjamin Clark –
Used this on my first lower perfect product. Instructions where very easy to follow. I had no prior experience with drilling or milling metal. I damaged the jig from just lack of knowledge but I have done 3 others after flawlessly from this company’s jig. I highly recommend and make sure you hold that router steady and clamp that jig down and it wRead more about review stating First timeill be perfect.
Benjamin Clark –
Used this on my first lower perfect product. Instructions where very easy to follow. I had no prior experience with drilling or milling metal. I damaged the jig from just lack of knowledge but I have done 3 others after flawlessly from this company’s jig. I highly recommend and make sure you hold that router steady and clamp that jig down and it wRead more about review stating First timeill be perfect.
Alexander King –
I have not had a chance to use this yet but have used the other caliber gen 1 jig which was great. This was reason to purchase the .308 gen 1. It was a great experience fast delivery and great communication on order status/delivery.
Scarlett Wright –
Looks good so far haven’t taken it out of box yet but if it’s anything like the one i bought for AR 15 lowers it’s going to be solid. FYI , I hear this particular jig works only on DPMS gen 1 style lowers. which is all i needed. I had a little trouble in shipping but that was my fault.
Jackson Scott –
Your product worked very well and I finished my lower in about four hours.