Build Your Custom Firearm with the Polymer80 80% Lower Receiver
Take control of your firearm build with our high-quality Polymer80 80% lower receiver. Designed for enthusiasts and DIY builders, this unfinished frame provides the foundation for creating a personalized, reliable firearm. At Republic Arms WA, we combine expert craftsmanship with fast shipping to deliver the components you need for your next project.
Key Features and Benefits
- Unfinished Design: This 80% lower receiver requires final machining, allowing for customization and compliance with regulations.
- Durable Polymer Construction: Made from robust materials for longevity and performance.
- Compatibility: Works with standard AR-15 parts and accessories for easy assembly.
- DIY-Friendly: Ideal for builders who enjoy hands-on projects and personalization.
Why Choose Republic Arms WA?
At Republic Arms WA, we are committed to providing top-notch products and service. Our expertise in firearms and accessories ensures you receive reliable components, backed by our fast shipping and customer support. Whether you’re a seasoned builder or new to DIY firearms, we’re here to help you succeed.

FAQs: Why Buy from Us?
- Expertise: Our team has extensive knowledge in firearms and components, offering guidance and quality assurance.
- Fast Shipping: We prioritize quick delivery to get your parts to you without delay.
- Trustworthiness: With a reputation for reliability, we ensure secure transactions and genuine products.
- Customer Support: We’re here to assist with any questions, from selection to assembly tips.
Ready to start your build? Shop more firearms and accessories at Republic Arms WA to complete your project with confidence.
| Material | Polymer |
| Completion Level | 80% (Unfinished) |
| Compatibility | AR-15 Parts |
| Brand | Polymer80 |
| Intended Use | Custom Firearm Builds |





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