Aero Precision M4E1 PRO Stripped Lower Receiver 5.56/.223 – Kodiak Brown

Build a modern AR-15 from the ground up with the Aero Precision M4E1 PRO Stripped Lower Receiver in Kodiak Brown. This premium ambidextrous lower takes the proven M4E1 footprint and upgrades it with mirrored controls, enhanced ergonomics, and a rugged anodized finish—ideal for duty, defense, or high-end range builds.

Key Features

• PRO Ambi Platform: Integrated ambidextrous bolt catch, magazine release, and safety interface allow full control without breaking your firing grip.
• Includes Core Controls: Ships with stripped lower receiver plus bolt catch assembly and magazine release assembly installed to the PRO spec.
• Forged 7075-T6 Aluminum: Built from a solid 7075-T6 forging for superior strength with a lightweight, duty-ready profile.
• Kodiak Brown Anodized Finish: Hard anodized in Aero’s signature Kodiak Brown for a durable, low-glare, premium look that pairs perfectly with matching uppers and handguards.
• Mil-Spec Compatibility: Designed to work with standard AR-15 components, magazines, and most aftermarket parts so you can configure your rifle exactly how you want.
• Enhanced Ergonomics: M4E1 PRO geometry provides billet-style aesthetics, flared magwell feel, and improved handling in a forged package.
• Made in the USA: U.S.-made receiver from a top-tier manufacturer known for tight tolerances and clean machining.

Specifications

• Manufacturer: Aero Precision
• Model: M4E1 PRO Stripped Lower Receiver
• Platform: AR-15
• Caliber Marking: Multi (optimized for 5.56 NATO / .223 Remington builds)
• Finish: Kodiak Brown Anodized
• Material: 7075-T6 forged aluminum
• Configuration: Stripped lower with PRO ambi control cutouts
• Included Components: Stripped lower receiver, bolt catch assembly, magazine release assembly
• Firearm Type: Semi-automatic lower receiver (FFL item)
• SKU: APAR600032AC
• UPC: 840014623266
• Country of Origin: Made in the USA
• Compatibility: Standard AR-15 uppers, mil-spec lower parts, and AR-15 magazines

Ideal Uses

• Premium duty or defensive AR-15 builds
• Ambidextrous or left-handed shooters needing mirrored controls
• High-end range guns and training carbines
• Color-matched Kodiak Brown rifle projects

Why Buy From Raven Rock Armory

• FFL-licensed shop with real-world AR build experience
• Careful order verification and secure shipping to your chosen FFL
• Knowledgeable support for compatibility and build-planning questions

FFL Requirement: This is a serialized firearm component and must ship to a Federal Firearms License (FFL) holder. After checkout, please have your dealer email their FFL information to sales@rra2a.com. Local, state, and federal laws and regulations apply. Make sure this item is legal to own in your area before ordering.