Polymer80 P80-JIG-RL556v3 Jig Kit

The Polymer80 P80-JIG-RL556v3 Jig Kit is the essential tool for completing your Polymer80 80% lower receiver build. Designed specifically for the RL556v3 platform, this jig provides the precision alignment and stability required to correctly machine your receiver. For builders who demand accuracy and repeatability, this kit eliminates guesswork and reduces the margin for error during the drilling and routing process. Whether you are assembling your first AR-pattern pistol or rifle, this jig kit delivers the consistency needed for a functional, reliable firearm.

Overview

The Polymer80 P80-JIG-RL556v3 Jig Kit is a dedicated fixture system engineered for use with Polymer80 RL556v3 80% lowers. It includes all necessary drill bits, end mills, guide pins, and the jig body itself. This kit replaces the need for improvised setups or multi-platform jigs that compromise on fit. Every component in this kit is machined to tight tolerances, ensuring that your lower receiver is milled straight and true. The jig body is constructed from impact-resistant polymer, designed to withstand repeated use without warping or cracking.

Features & Specs

• Precision-machined alignment block secures the RL556v3 lower during all milling and drilling operations.
• Includes hardened steel drill bits and end mills specifically sized for the trigger pocket, fire control group pin holes, and safety selector.
• Reusable jig body made from high-impact polymer; compatible with multiple builds when properly maintained.

The kit includes step-by-step indexing marks and color-coded tooling to reduce assembly time. All drill guides are pre-angled for correct trigger and hammer pin placement. The Polymer80 P80-JIG-RL556v3 Jig Kit is a direct-fit solution—no modification or adapter plates required. This kit is manufactured by Polymer80, a leading name in the 80% build market, and is classified under build kit accessories.

Who It’s For

This jig kit is intended for individuals legally permitted to manufacture a firearm for personal use under federal law. It is ideal for hobbyists, custom builders, and gunsmiths who want to complete an 80% lower receiver without outsourcing the machining work. If you already own a drill press or hand drill and a router, this kit provides the necessary guidance to complete the fire control pocket and pin holes accurately. The Polymer80 P80-JIG-RL556v3 Jig Kit is not for those seeking a pre-assembled lower—it is for the hands-on builder who values craftsmanship and control over the final fit.

• Perfect for first-time builders who want a complete, all-in-one jig solution.
• Suited for experienced builders who need a dedicated jig for the RL556v3 platform.
• Recommended for anyone who wants to avoid the complications of universal jig systems.

Shipping & FFL

This product is a firearm part and tool, not a serialized firearm frame or receiver. As such, the Polymer80 P80-JIG-RL556v3 Jig Kit ships directly to your doorstep with no FFL transfer required. No background check is needed for purchase. However, you must comply with all federal, state, and local laws regarding the manufacture of a firearm for personal use. It is your responsibility to ensure you are legally permitted to possess and use this kit. Some states and municipalities have specific restrictions on 80% build kits and jigs—verify your local regulations before ordering. We do not accept returns on opened jig kits or used tooling.