WORKHORSE Forged Mil-Spec AR Lower Receiver

Heavy-duty forged lower receiver — built for longevity, reliability, and Mil-Spec compatibility. Perfect for duty, range, and competition builds.

Key Features

• Forged from 7075-T6 aircraft-grade aluminum for superior strength
• Mil-Spec dimensions for reliable fit with standard AR components
• Beveled magwell and enhanced trigger pocket for fast reloads and improved ergonomics
• Precision machined fire control pocket and hardened pivot/takedown pin areas
• Pre-drilled and tapped for common ambidextrous control options (where applicable)
• Type III hard anodize or bead-blast finish options available (select in product variants)
• 100% dimensional inspection and QC before shipment

Product Overview

The WORKHORSE® Forged Lower Receiver is purpose-built for users who demand a robust, repeatable platform. Forged 7075-T6 construction provides outstanding durability while maintaining standard AR dimensions for drop-in compatibility. Whether you’re building a service rifle, competition gun, or a hard-use patrol rifle, the WORKHORSE lower offers a rock-solid foundation.

Why Choose WORKHORSE

• Proven Strength: Forged construction withstands harsh use and repeated assembly/disassembly.
• Precision Fit: Tight tolerances reduce wobble and improve repeatability between uppers and lowers.
• Build-Ready: Ready to accept Mil-Spec parts kits and common aftermarket upgrades.
• Finish Options: Durable finishes available to suit service or show builds.

Specifications

• Model: WORKHORSE® Forged Lower Receiver
• Material: 7075-T6 Forged Aluminum
• Finish: Type III Hard Anodize / Bead-blast (select in variants)
• Compatibility: Standard AR-15 / M4 pattern — accepts Mil-Spec parts and most aftermarket kits
• Controls: Standard magazine release, bolt catch, and selector cut (ambidextrous options available)
• Trigger Pocket: Mil-Spec + enhanced pocket for improved trigger fitment
• Weight: Forged design (weight varies by configuration)
• Country of Origin: USA (replace if needed)
• SKU: WHS-LWR-FRG-SKU (replace)

COMPATIBILITY & FITMENT

Designed to accept standard Mil-Spec AR-15 components (barrels, BCGs, buttstocks, grips). For AR pistol or SBR builds consult a qualified gunsmith and ensure compliance with NFA rules where applicable.

FEDERAL FIREARMS LICENSE REQUIRED

Please provide your FFL dealer information to sales@ravenrockarmory.com immediately after purchase. Orders without valid FFL documentation will be delayed or cancelled.

Fitment & Installation Notes

Works with Mil-Spec lower parts kits and standard AR-15 assemblies. Some aftermarket or proprietary components may require minor fitting. If unsure, consult a qualified gunsmith before assembly.

Important — Federal Firearms License Required

Note: A valid Federal Firearms License (FFL) transfer is required to purchase and receive this product where applicable. By ordering receivers or other regulated components you agree to follow all local, state, and federal laws. We will only ship to a valid FFL dealer address unless local law permits otherwise.

Ordering & Shipping

• Availability: In stock / backorder (update as appropriate)
• Shipping: Ships to FFL — buyer must provide valid FFL info at checkout
• Returns: Return policy applies to non-serialized parts — contact us before returning

EXPORT NOTICE: This product and/or its components is subject to the Arms Export Control Act (AECA), the Export Administration Act (EAA) as continued in effect under the International Emergency Economic Powers Act (IEEPA), the International Traffic In Arms Regulations (ITAR, 22 CFR Parts 120-130), the Export Administration Regulations (EAR) and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) Regulations. Export is strictly prohibited without authorization or a license issued by the U.S. Department of State's Directorate of Defense Trade Controls. Any documents, drawings, prints, etc. that can be viewed, downloaded, or printed from our website may contain technical data which may not be exported outside of the United States or released/disclosed to non-US persons (i.e. persons who are not US citizens or lawful permanent residents) inside of the United States, without prior written authorization by the relevant US Government agency. Penalties for violation of U.S. export laws and regulations can reach $1,000,000 per violation and include up to 10 years imprisonment.