80% Lower Patriot Pack

The 80% Lower Patriot Pack represents a foundational component for builders who prioritize control over the final configuration of their firearm platform. This un-machined lower receiver is produced to exacting tolerances, offering the end user a blank canvas for a compliant, custom build. As a parts category item, this pack is designed for individuals with the tooling and expertise to complete the machining process. The 80% lower patriot pack is an ideal starting point for a project that requires a hands-on approach to firearm assembly, ensuring that every subsequent component is selected by the builder.

Overview

The 80% Lower Patriot Pack is a precision-engineered, uncompleted lower receiver constructed from a high-grade aluminum forging. It is classified as a parts kit under federal guidelines, as it does not meet the definition of a firearm receiver until material is removed from the specified trigger pocket and fire control group areas. This pack is manufactured by 80% Arms, a company recognized for its commitment to tight dimensional standards. The raw forging is designed to be compatible with standard mil-spec upper receivers and lower parts kits, providing a seamless integration path for a wide range of build configurations. The 80% lower patriot pack includes the main receiver body, ensuring the builder has the necessary blank to begin their project.

Features & Specs

This 80% lower patriot pack is built around a series of specific material and dimensional specifications that cater to the experienced builder. The receiver is machined from a 7075-T6 aluminum forging, a material chosen for its strength-to-weight ratio and durability under operational stress. The exterior surfaces are finished with a hard-coat anodized coating, providing a wear-resistant and corrosion-resistant layer. The critical dimensions—including the magazine well, rear takedown pin lug, and buffer tube threads—are fully machined to mil-spec tolerances. The builder must complete the trigger pocket, safety selector hole, and hammer pin holes.

• Material: 7075-T6 Aluminum forging with Type III Class 2 hard-coat anodized finish.
• Compatibility: Designed for standard mil-spec AR-15 upper receivers, lower parts kits, and buffer tube assemblies.
• Machining Requirements: Requires removal of material in the trigger pocket area; includes un-machined trigger, hammer, and safety selector pin locations.

Additional specifications include a weight of approximately 0.5 pounds for the raw forging. The receiver features a flared magazine well for improved reload efficiency, a threaded bolt catch pin, and an integrated trigger guard. The 80% lower patriot pack is designed to be a direct replacement for a completed lower receiver in terms of external geometry, meaning all exterior dimensions are final and require no further machining.

• Finish: Mil-spec hard-coat anodized (black) for surface hardness and lubricity.
• Pocket Depth: Pre-machined to 80% completion; trigger pocket depth is approximately 0.400 inches.
• Included Components: One (1) un-machined lower receiver forging; no jigs or tooling are included.

Who It's For

The 80% lower patriot pack is intended for the knowledgeable firearm builder who possesses the necessary machining equipment—such as a drill press, milling machine, or dedicated 80% lower jig—and the skill set to complete the receiver to a functional state. This product is not for first-time builders without access to proper tooling or a thorough understanding of receiver machining. It is for the individual who values the process of building from a parts-level component, ensuring that the final assembly is entirely their own work. This 80% lower patriot pack is also suitable for those who wish to build a firearm that is not directly serialized by a manufacturer, subject to all applicable state and local laws.

• Experienced builders with access to a drill press or milling machine.
• Individuals who prefer to select and install their own trigger group, grip, and stock.
• Those seeking a compliant method of constructing a firearm under current federal regulations.

Shipping & FFL

Because the 80% Lower Patriot Pack is classified as a non-firearm receiver blank under the Gun Control Act (GCA), it does not require shipment to a Federal Firearms License (FFL) dealer. This product can be shipped directly to your residential or business address. However, it is your responsibility to verify that possession and completion of an 80% lower receiver is legal under your state and local laws. Some states and municipalities have specific restrictions or outright bans on the possession of un-serialized receiver blanks. By purchasing this 80% lower patriot pack, you certify that you are legally eligible to possess this item and that you will comply with all applicable laws. No FFL transfer is required from our facility, but we recommend consulting with a local attorney if you have any questions regarding your jurisdiction's regulations.