Description

Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig

Overview

The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig represents a precision-engineered foundation for building a custom AR-15 platform. Designed for the builder who values control over every component, this 80% lower receiver requires final machining to become a functional firearm. The included jig system simplifies the completion process, making it a practical choice for those with basic workshop tools. Whether you are starting your first build or adding to your inventory, the polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig delivers a solid, reliable base without unnecessary complexity.

Features & Specs

Manufactured by Polymer80, this lower receiver is constructed from impact-resistant polymer, offering a balance of weight savings and durability. The Rhino series is specifically engineered for compatibility with standard AR-15 parts kits, ensuring a straightforward assembly experience. The included jig provides clear drilling and milling guides, reducing the margin for error during the finishing process.

• Manufacturer: Polymer80 | Category: Parts | Material: High-strength polymer composite
• Compatible with mil-spec AR-15 upper receivers, trigger groups, and buffer tubes
• Integrated trigger guard and reinforced rear takedown pin bosses for enhanced rigidity

• Jig includes pre-drilled alignment holes, drill bits, and end mill guide for precise pocketing
• Accepts standard AR-15 magazines and lower parts kits without modification
• Anodized aluminum jig components resist wear during repeated use

• Approximate weight: 7.2 ounces (lower receiver only) for reduced overall build weight
• Finish: Textured grip surface for improved handling under various conditions
• Compatible with both pistol and rifle buffer tube configurations

When you choose the polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig, you are selecting a component that meets established manufacturing tolerances. This receiver is not a finished firearm and requires additional work to complete, giving you full authority over the final build specifications.

Who It’s For

This product is intended for individuals who are legally permitted to own firearm components and possess the mechanical aptitude to complete an 80% lower receiver. It suits hobbyists, custom builders, and those who prefer to assemble their AR-15 platform from the ground up. The included jig makes it accessible to users with a drill press and basic hand tools, though prior experience with metal or polymer machining is recommended. If you value the process of building over buying a completed lower, the polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig aligns with that approach. It is not designed for those seeking a drop-in, pre-assembled component.

Shipping & FFL

Because the polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig is an 80% receiver and not a finished firearm, it can be shipped directly to your residential or business address without requiring transfer through a Federal Firearms License (FFL) dealer. However, you are responsible for verifying that possession of this item is legal in your state and local jurisdiction. Some states and municipalities impose restrictions on the ownership or completion of 80% receivers. By purchasing this product, you acknowledge that you will comply with all applicable laws. We recommend consulting legal counsel if you have any questions regarding compliance. No FFL transfer fee applies to this item.