Build Your Custom AR-15 with the Polymer80 80% Lower Receiver
Take control of your firearm build with our high-quality Polymer80 80% lower receiver. Designed for DIY enthusiasts who value customization and privacy, this unfinished lower allows you to complete the machining process yourself without FFL paperwork. With our commitment to very fast shipping, you can start your project sooner and enjoy the satisfaction of building a firearm tailored to your exact specifications.
Why Choose Our 80% Lower Receiver?
- No FFL Required: Since this is an unfinished receiver, you can purchase it directly without involving a Federal Firearms License holder
- Easy Completion: Designed for simple milling with standard workshop tools – perfect for first-time builders
- Premium Polymer Construction: Durable polymer material provides excellent strength-to-weight ratio and corrosion resistance
- Fast Shipping Guarantee: We prioritize quick order processing and shipment so you can begin your project immediately
- Complete Customization: Build your AR-15 exactly how you want it without compromise
Perfect for DIY Firearm Enthusiasts
Whether you’re building your first AR-15 or adding to your collection, our 80% lower receiver offers the perfect foundation. The unfinished design means you maintain complete control over the manufacturing process while complying with all applicable laws. The polymer construction ensures durability while keeping weight minimal – ideal for various AR-15 configurations from target shooting to home defense.
Technical Specifications
Our Polymer80 lower receiver features precise dimensions and reinforcement in critical areas to ensure reliable performance. The design includes proper alignment for easy completion and compatibility with standard AR-15 parts kits. The polymer material provides excellent impact resistance and dimensional stability across various temperature conditions.
Why Buy From DC Gun Shop?
FAQ: What Makes Us Your Best Choice?
- Expertise You Can Trust: Our team includes experienced firearms enthusiasts who understand your needs and can provide knowledgeable support
- Fast, Reliable Shipping: We process orders quickly and use reliable carriers to ensure timely delivery
- Quality Assurance: Every product undergoes inspection to meet our high standards before shipping
- Customer-Focused Service: We’re committed to your satisfaction with responsive support and clear communication
Ready to start your build? Explore our full selection of AR-15 parts and accessories to complete your custom firearm project.

| Material | Polymer |
| Completion Required | 80% (Requires milling) |
| FFL Required | No |
| Compatibility | Standard AR-15 Parts |
| Shipping | Fast Processing |
Frequently Asked Questions – Polymer80 80% Lower Receiver - Fast Shipping AR-15 Build Kit
- 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 80% Lower Receiver - Fast Shipping AR-15 Build Kit suitable for me?
- This Polymer80 80% Lower Receiver - Fast Shipping AR-15 Build Kit is popular for uses like new arrivals.
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