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Polymer80 LR-308 80% Lower Receiver for AR-10 Builds

Build your custom AR-10 rifle with the Polymer80 LR-308 80% lower receiver. This unfinished receiver is easy to machine, lightweight, and durable, perfect for DIY enthusiasts seeking a personalized firearm project. Ideal for .308/7.62mm builds.

Original price was: $50.99.Current price is: $45.89.

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Polymer80 LR-308 80% Lower Receiver: Your Gateway to Custom AR-10 Rifles

Embark on your next firearms project with the Polymer80 LR-308 80% lower receiver, designed for enthusiasts who crave customization and reliability. As an unfinished component, it allows you to legally complete the machining at home, offering a hands-on experience that results in a unique AR-10 platform rifle. Crafted from high-strength polymer, this receiver is not only lightweight for enhanced portability but also built to withstand the rigors of .308/7.62mm calibers, ensuring durability in various shooting conditions. Whether you’re a seasoned builder or a beginner, this lower receiver simplifies the process with user-friendly design features, making it a top choice for DIY firearm projects.

Key Features and Benefits

  • Easy Machining: The 80% lower design requires minimal tools and skills to complete, allowing you to finish the receiver with basic drilling and milling equipment for a personalized touch.
  • Lightweight Construction: Made from advanced polymer materials, it reduces overall rifle weight without compromising strength, ideal for hunting or tactical use where every ounce counts.
  • Durability and Reliability: Engineered to handle high-pressure .308 rounds, this receiver features reinforced stress points for long-lasting performance and consistent function.
  • Customization Potential: As an unfinished part, it gives you the freedom to tailor your AR-10 build with aftermarket triggers, stocks, and grips, ensuring a firearm that matches your exact preferences.
  • Cost-Effective Solution: By starting with an 80% lower, you save money compared to pre-built receivers, making it an affordable entry into custom rifle building.

Specifications and Technical Details

This Polymer80 LR-308 lower receiver is compatible with AR-10 platforms and designed for .308 Winchester/7.62x51mm NATO calibers. Its precise dimensions ensure seamless integration with standard upper receivers and parts kits. The polymer composition offers excellent impact resistance and corrosion resistance, while the unfinished state means you can anodize or paint it to your liking after completion. Note that it does not include a jig or tools, so you’ll need to source those separately for the machining process.

Why Choose This Product?

At DC Gun Shop, we recommend the Polymer80 LR-308 for its blend of accessibility and performance. It’s perfect for builders who want to avoid the paperwork associated with serialized receivers, as it falls under ATF guidelines for homemade firearms. Plus, its lightweight nature makes it ideal for extended use in the field. For more options, check out our AR-10 parts and accessories to complete your build.

Frequently Asked Questions (FAQ)

Why Buy From DC Gun Shop?

  • Expertise and Trust: With years of experience in the firearms industry, we provide reliable products and expert advice to ensure you make informed decisions.
  • Quality Assurance: Every item, like this Polymer80 receiver, is sourced from reputable manufacturers and tested for compliance, giving you peace of mind with your purchase.
  • Customer Support: Our team is here to assist with any questions, from product details to building tips, ensuring a smooth and satisfying shopping experience.
  • Competitive Pricing: We offer fair prices and regular promotions, making high-quality firearm components accessible to all enthusiasts.

Start your custom build today and experience the satisfaction of creating a rifle that’s truly your own. The Polymer80 LR-308 80% lower receiver is more than just a part—it’s the foundation for your next adventure in firearms craftsmanship.

Model LR-308
Caliber .308 Winchester/7.62x51mm NATO
Material High-Strength Polymer
Finish Unfinished (Requires Machining)
Compatibility AR-10 Platform
Weight Lightweight Design
Status 80% Lower Receiver

Frequently Asked Questions – Polymer80 LR-308 80% Lower Receiver for AR-10 Builds

How fast does this ship?
Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
Do I need registration?
Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
Is this legal in D.C.?
Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
Is the Polymer80 LR-308 80% Lower Receiver for AR-10 Builds suitable for me?
This Polymer80 LR-308 80% Lower Receiver for AR-10 Builds is popular for uses like new arrivals.
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Shipping Policy – Washington, D.C.

Orders ship within 1‑3 business days to your selected licensed FFL dealer in D.C. Registration must be in process and CDP confirmed.

Return Policy

Non-firearm items returnable within 14 days if unused and in original packaging. Firearms sales are final once registered and possession occurs per D.C. code.

Consult our Return Policy page for more details.

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