Polymer80 80% Lower Receiver and Jig Kit for LR-308 Builds
- Firearms ship to the FFL dealer you choose, in any state
- Free shipping on orders over $99 · ships in 1–2 business days
- 30-day returns on unused parts and accessories
About this product
Build Your Custom LR-308 Rifle with the Polymer80 80% Lower Receiver and Jig Kit
Take your firearm customization to the next level with the Polymer80 80% Lower Receiver and Jig Kit, designed specifically for LR-308 platforms. This all-in-one kit empowers you to create a personalized, high-performance rifle from the comfort of your workshop. Whether you're a seasoned gunsmith or a DIY enthusiast, this kit simplifies the process with precision-engineered components that ensure reliability and durability. Crafted from robust polymer materials, the lower receiver offers a lightweight yet sturdy foundation for your build, while the included jig guarantees accurate machining every time. No FFL transfer is required, making it a convenient and legal option for responsible gun owners looking to expand their collection.
Key Features and Benefits
- Complete Kit for LR-308 Builds: Includes an 80% lower receiver and precision jig, so you have everything needed to start your project immediately.
- Durable Polymer Construction: Made from high-strength polymer that resists impact and wear, ensuring long-lasting performance in various conditions.
- Easy Machining with Jig: The jig provides foolproof guidance for drilling and milling, reducing errors and saving time, even for beginners.
- No FFL Required: As an unfinished receiver, it bypasses federal transfer regulations, offering a hassle-free way to build your firearm legally.
- Lightweight Design: Weighs less than traditional metal receivers, making your final build easier to handle and carry for hunting or target shooting.
- Customization Freedom: Allows you to tailor your LR-308 rifle to your exact preferences, from trigger groups to stocks, for a truly unique firearm.
Why Choose This Polymer80 Kit?
Based on our experience at Florida Gun Store, the Polymer80 80% Lower Receiver and Jig Kit stands out for its user-friendly design and reliability. We've seen countless customers successfully build robust rifles that perform flawlessly in the field. The polymer material not only cuts down on weight but also resists corrosion, making it ideal for humid environments like Florida. Plus, the jig's precision ensures that even those new to gunsmithing can achieve professional-grade results without expensive tools. This kit is a testament to Polymer80's expertise in firearm components, backed by years of innovation in the industry.
Specifications and Technical Details
Below is a summary of the key specifications to help you make an informed decision. Note that this is an unfinished product requiring additional parts like a upper receiver, barrel, and trigger assembly to complete your LR-308 build.
| Model | LR-308 |
| Material | High-Strength Polymer |
| Completion Status | 80% Lower (Unfinished) |
| Included Components | 80% Lower Receiver, Jig, Drill Bits, Instructions |
| Weight (Approx.) | Varies based on final build |
| Color | Black (as shown in images) |
| Compatibility | LR-308/AR-10 Platform Parts |
How to Use the Kit for Your Build
Start by securing the 80% lower receiver in the provided jig, which aligns all necessary drill points. Use a standard drill press or hand drill with the included bits to complete the fire control group pocket and trigger pin holes. Follow the step-by-step instructions for milling the receiver to final dimensions. Once machined, you can assemble it with compatible LR-308 parts like a upper receiver, bolt carrier group, and buffer tube. Always wear safety gear and work in a well-ventilated area. For more tips, check out our Sources & methodology. Editorial review and rating by Sales Team based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.