Product Overview
The RL556v3 80% AR15 Lower Receiver in OD Green is a precision-engineered starting point for builders seeking a durable, lightweight foundation for a custom rifle. Designed for experienced firearms enthusiasts familiar with 80% lower completion, this component allows for the personalization and assembly of an AR-15 platform firearm in compliance with all applicable regulations. Crafted from a proprietary polymer composite, this lower is ideal for building lightweight hunting rigs, dedicated training rifles, or specialized competition setups where reducing overall weight is a priority. Its distinctive OD Green finish offers a tactical aesthetic that is both functional and visually distinct.
Key Features
- Robust Polymer Composite Frame: Constructed from Polymer80’s reinforced polymer blend, the RL556v3 offers a significant weight reduction over traditional aluminum lowers while maintaining durability and structural integrity in critical areas.
- Solid Core Design & Flared Magwell: The solid core design enhances rigidity where it counts, while the integrated flared magwell facilitates faster, more reliable magazine changes, a critical feature for competitive shooting or tactical training.
- Reinforced Buffer Tube Housing: Features a beefier, mil-spec buffer tube housing area engineered to withstand the repeated impact and stress from the rifle’s recoil system, ensuring long-term reliability.
- Threadless Pistol Grip Design: Incorporates a unique threadless design specific to Polymer80 rifle lowers, simplifying the installation of compatible pistol grips for a clean, secure fit without traditional screw threads.
- Complete 80% Lower Kit: Includes everything needed for proper completion: the 80% lower receiver in OD Green, a dedicated polymer jig, trigger hole drill guide, and the necessary drill bits and end mill.
- Mil-Spec Compatibility: Designed to accept standard mil-spec AR-15 upper receivers, parts kits, and accessories, ensuring broad compatibility with available components on the market.
Performance & Applications
The RL556v3’s polymer construction and intelligent design translate to specific advantages in the field. For the hunter traversing long distances, the weight saved with this lower can reduce fatigue, making it an excellent choice for a lightweight, brush-ready hunting rifle build. In dynamic shooting sports like 3-Gun, the flared magwell and reduced overall weight contribute to faster handling and transitions between stages, providing a tangible competitive edge.
Furthermore, this lower serves as an excellent platform for a dedicated .22 LR conversion training rifle. The polymer frame is more than capable of handling the minimal recoil of a .22 LR cartridge, and the cost savings from the lower itself can be redirected towards high-quality optics or ammunition, creating an affordable and effective training tool that mimics the manual of arms of a centerfire AR-15.
About RL556v3
RL556v3 is a product line from Polymer80, a company recognized for its innovation in advanced polymer firearms components. Polymer80 has invested significantly in material science, developing proprietary polymer composites that meet the rigorous demands of modern shooters. Their design philosophy focuses on enhancing user experience through ergonomic improvements and intelligent engineering, such as the threadless grip system found on this lower. The company’s products are developed with a deep understanding of the firearms building community, aiming to provide reliable, functional components that empower personalization and craftsmanship. It is important for builders to stay informed about federal, state, and local regulations regarding firearms manufacturing.
Why Buy From Imbert Smither Arms
Located in SAN CARLOS, CA, Imbert Smither Arms operates with a commitment to serving the knowledgeable firearms community. We focus on providing clear product information and reliable access to components for experienced builders and enthusiasts. Our approach is rooted in understanding the technical aspects of the products we offer, like the RL556v3, ensuring customers receive the correct components for their specific project requirements. We prioritize straightforward transactions and adhere strictly to all applicable laws and regulations in our operations.
Make Your Decision
The RL556v3 80% AR15 Lower in OD Green represents a specific choice for a specific builder. If your project goals include reducing weight, utilizing modern polymer composites, and having a complete kit to begin your build, this lower receiver is a compelling option. Its design features, like the flared magwell and reinforced buffer housing, address known points of interest for builders seeking performance. As with any 80% project, success requires appropriate tools, mechanical skill, and a thorough commitment to understanding and following all legal guidelines for completion. Evaluate your needs, skill level, and local laws to determine if this is the right foundation for your next custom AR-15 build.
P80 AR15 lower.. Update!
Technical Specifications
Frequently Asked Questions
Is this a quality product?
RL556v3 has built their reputation on quality, and the RL556v3 80% AR15 Lower – OD Green exemplifies that commitment.
Who is this product for?
This is ideal for discerning buyers who prioritize quality and reliability.
What warranty is included?
RL556v3 stands behind this product with their manufacturer warranty.
What makes this product stand out?
The RL556v3 80% AR15 Lower – OD Green combines quality construction with reliable performance, offering exceptional value.





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