Description

Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556v3 Jig Kit Bundle

If you are ready to build your own AR15 from the ground up, this bundle is the starting point you have been looking for. The polymer80 rl556v3 – rhino 80% ar15 lower receiver and rl556v3 jig kit bundle brings together two essential components in one package: the rugged RL556V3 80% lower and the dedicated jig kit that makes the finishing process straightforward. Whether you are new to firearm assembly or a seasoned builder, this kit gives you the freedom to complete a serial-number-free lower receiver at your own pace, in your own workspace.

Overview

This bundle is designed around the Polymer80 RL556V3 Rhino lower receiver, an 80% AR15 lower that requires final machining to become a functional firearm component. Paired with the RL556v3 jig kit, you get the precise alignment guides, drill bits, and router templates needed to finish the pocket and trigger group. The RL556V3 features a reinforced polymer construction that is both lightweight and durable, with an integrated trigger guard and a flared magazine well for faster reloads. When you purchase the polymer80 rl556v3 – rhino 80% ar15 lower receiver and rl556v3 jig kit bundle, you are getting a matched set that removes the guesswork from your build.

Features & Specs

The RL556V3 lower receiver is molded from high-impact polymer with stainless steel trigger and hammer pin inserts for extended wear resistance. It is compatible with all standard mil-spec AR15 upper receivers and lower parts kits. The included RL556v3 jig kit provides a reusable fixture that holds the lower securely while you complete the material removal. Here are the key specifications at a glance:

• Manufacturer: Polymer80 | Category: Build Kits | Material: Reinforced polymer with steel inserts
• Fire control pocket and trigger group require final milling or drilling (80% completion state)
• Integrated trigger guard, flared magazine well, and rear takedown pin detent hole pre-drilled
• Jig kit includes drill bits, end mill, alignment pins, and step-by-step instructions

Because this is an 80% lower, it does not contain a serial number and is not considered a firearm by the ATF until you complete the machining process. The polymer80 rl556v3 – rhino 80% ar15 lower receiver and rl556v3 jig kit bundle gives you full control over your build timeline and final finish.

Who It’s For

This bundle is ideal for the home builder who wants a hands-on project without the overhead of a full machine shop. If you own a drill press or a handheld router and have basic mechanical skills, you can finish this lower in an afternoon. It is also a smart choice for anyone looking to build a dedicated pistol-caliber carbine or a custom rifle configuration, since you can pair the finished lower with any mil-spec upper. The polymer80 rl556v3 – rhino 80% ar15 lower receiver and rl556v3 jig kit bundle is especially popular among builders who value privacy and the satisfaction of completing a firearm from a raw receiver.

• Home builders with access to a drill press or router
• Enthusiasts who want a dedicated pistol or rifle lower without serialization
• Anyone who prefers a lightweight polymer lower with enhanced ergonomics

The jig kit is reusable, so if you plan to build multiple lowers, this bundle becomes a long-term investment. Just keep in mind that you will need a separate lower parts kit and buffer tube assembly to complete the firearm.

Shipping & FFL

Because the polymer80 rl556v3 – rhino 80% ar15 lower receiver and rl556v3 jig kit bundle contains an 80% receiver that is not yet a firearm, it ships directly to your home or business address. No Federal Firearms License (FFL) transfer is required for the lower receiver or the jig kit. However, once you finish machining the lower, you are responsible for complying with all federal, state, and local laws regarding firearm possession and assembly. Some states and localities restrict or prohibit the possession of unfinished receivers or the manufacture of firearms without a license. It is your responsibility to verify that this product is legal in your jurisdiction before purchasing. We ship via UPS or FedEx with adult signature required. If you have any questions about your state’s laws, please contact our customer service team before placing your order.

• No FFL needed for the 80% lower or jig kit
• Ships directly to your door with adult signature required
• You must comply with all applicable laws after completing the receiver