Description
Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig
Overview
The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig is a precision-machined, unfinished lower receiver designed for builders who want complete control over their AR-15 platform. This 80% lower requires final machining to become a functional firearm component, allowing you to customize the build without a serialized transfer through an FFL at the time of purchase. The included modular jig system simplifies the milling process, making this an efficient choice for a first-time or experienced builder. When you choose the polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig, you are selecting a component that meets polymer80’s established manufacturing standards for fit and finish.
Features & Specs
The polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig is built around a reinforced polymer frame that balances weight savings with structural integrity. Key specifications include compatibility with standard AR-15 parts kits and the included reusable jig that guides the final machining of the fire control pocket and trigger pin holes.
- Manufacturer: Polymer80; Category: Parts; Material: Reinforced polymer with integral steel trigger pin insert
- Compatibility: Accepts standard AR-15 lower parts kits, buffer tubes, and pistol grips; mil-spec dimensions for stock and grip mounting
- Included: RL556V3 lower receiver, complete Rhino jig system with drill bits and end mill, installation hardware, and step-by-step instructions
Who It’s For
This product is intended for individuals who legally possess the right to manufacture a firearm for personal use and are comfortable with basic machining tasks using a drill press or hand drill. The polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig suits hobbyists who want to build a custom AR-15 from a stripped lower, as well as those who prefer a non-serialized receiver for their personal collection. It is not designed for commercial manufacturing or resale of completed receivers. If you are new to 80% builds, the included jig reduces complexity, but you should verify your local and state laws regarding firearm manufacturing before purchase.
- Ideal for DIY builders seeking a no-FFL-transfer lower receiver for personal use
- Suited for those who want to finish a lower at home with basic tools (drill press recommended)
- Not for individuals under 18, prohibited persons, or those in jurisdictions restricting 80% receivers
Shipping & FFL
This polymer80 rl556v3 – rhino 80% ar15 lower receiver with jig is classified as an unfinished receiver and does not require transfer through a Federal Firearms License (FFL) for shipment. It is shipped directly to your doorstep. However, you are solely responsible for ensuring compliance with all federal, state, and local laws regarding the possession and finishing of 80% lower receivers. Some states, including but not limited to California, New York, New Jersey, Connecticut, and Washington, D.C., restrict or prohibit the sale of unfinished receivers. By purchasing this item, you confirm that you are legally eligible to own and finish firearm components in your jurisdiction. We do not ship to PO boxes without a physical address verification. Standard shipping rates apply; allow 5-10 business days for delivery.
- No FFL transfer required for shipment; ships directly to your address
- Buyer must comply with all applicable laws; check state and local restrictions before ordering
- We reserve the right to cancel orders that violate shipping policies or legal requirements




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