RL556v3 80% AR-15 Lower Receiver in Flat Dark Earth
Take your AR-15 build to the next level with the RL556v3 80% lower receiver, finished in a durable Flat Dark Earth coating. Designed for firearm enthusiasts who value customization and compliance, this unfinished lower allows you to complete the machining process yourself, creating a truly personalized rifle. Whether you’re a seasoned builder or new to the world of DIY firearms, this receiver offers a solid foundation for a reliable and high-performing AR-15.
Key Features and Benefits
- 80% Completion: This lower receiver is 80% finished, meaning you’ll need to mill out the fire control group pocket and drill necessary holes. This provides a legal pathway to build your firearm without serialization requirements in many jurisdictions, but always check local laws.
- Flat Dark Earth Finish: The attractive FDE coating not only enhances aesthetics but also offers corrosion resistance and durability, ensuring your lower stands up to harsh conditions and frequent use.
- High-Quality Materials: Crafted from robust materials, the RL556v3 is built to withstand the rigors of shooting, providing a stable platform for your AR-15 components.
- Compatibility: Designed to work with standard AR-15 parts, making it easy to source triggers, bolts, and other accessories for a seamless build experience.
- DIY Empowerment: By completing the machining yourself, you gain hands-on experience and a deeper understanding of your firearm’s mechanics, fostering a sense of accomplishment and ownership.
Why Choose This 80% Lower Receiver?
As experts in firearm components, we recommend the RL556v3 for its precision engineering and user-friendly design. It’s ideal for those looking to avoid the paperwork and wait times associated with serialized receivers, while still ensuring quality. The Flat Dark Earth color blends well with various upper receivers and accessories, giving your build a professional, tactical look. Plus, building from an 80% lower can be a rewarding project that enhances your gunsmithing skills.
Specifications and Build Considerations
Before starting your build, ensure you have the proper tools, such as a drill press or milling machine, jigs, and bits. This receiver is intended for personal use and requires careful attention to detail during completion. Always follow safety guidelines and local regulations to ensure a legal and successful project. For added convenience, consider pairing it with compatible parts from our AR-15 accessories collection.
Why Buy From Miami Shooters Supply?
At Miami Shooters Supply, we combine years of experience with a commitment to customer satisfaction. Our team includes firearm enthusiasts who test and vet products to ensure they meet high standards. We offer fast shipping, secure checkout, and expert support to guide you through your purchase. Trust us for reliable components and a seamless shopping experience.

| Model | RL556v3 |
| Completion Status | 80% Lower Receiver |
| Finish | Flat Dark Earth (FDE) |
| Compatibility | AR-15 Platform |
| Material | High-Strength Polymer or Aluminum (assumed based on similar products) |
| Intended Use | DIY Firearm Building |
| Legal Note | Requires machining to complete; check local laws for compliance |


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