Elevate Your Custom AR-10 Build: The Aero Precision M5 .308 Stripped Lower Receiver in Magpul FDE Cerakote

For firearm enthusiasts and precision builders aiming to construct a robust, high-performance AR-style rifle chambered in .308 Winchester or other large-frame calibers, the foundation you choose is paramount. The Aero Precision M5 .308 Stripped Lower Receiver, finished in an attractive and durable Magpul FDE Cerakote, stands as the ideal starting point for such a project. This meticulously engineered component provides the strength, versatility, and exact specifications needed to build a custom AR-10 from the ground up, tailored precisely to your shooting needs.

Are you pondering questions like, "What is the best lower receiver for a custom .308 AR build?" or "How can I ensure my AR-10 components fit together seamlessly?" This Aero Precision M5 lower receiver is the definitive answer. Designed to meet demanding mil-spec dimensions, it ensures impeccable component interface and superior quality, solving the common builder's dilemma of compatibility and reliability. Whether you're a seasoned armorer or embarking on your first large-frame AR project, this stripped lower offers the ultimate flexibility to create a truly personalized firearm.

Why Choose a Stripped Lower Receiver for Your AR-10?

Opting for a stripped lower receiver like the Aero Precision M5 provides unparalleled customization and control over your build. Instead of a pre-assembled lower, a stripped unit allows you to hand-pick every single component, from the trigger group to the pistol grip and buffer system. This is crucial for builders who demand specific performance characteristics, ergonomic preferences, or aesthetic details that off-the-shelf solutions cannot provide.

Key advantages of starting with a stripped lower include:

• Total Customization: Select your preferred trigger, safety selector, pistol grip, and other lower parts to match your shooting style and intended use.
• Enhanced Understanding: Assembling the lower from scratch helps you gain a deeper understanding of your firearm's mechanics.
• Problem-Solving: Perfect for rectifying specific issues or limitations encountered with pre-built lowers.
• Optimized Performance: Every component can be chosen for peak performance in specific applications, whether it's competitive shooting, long-range precision, hunting, or tactical readiness.
• Cost Efficiency (Potentially): While the initial cost of a stripped lower might seem modest, the ability to shop for sales on individual parts can sometimes lead to overall savings compared to a complete lower receiver group.

For those asking, "What parts do I need to complete an AR-10 stripped lower?", the journey begins with selecting a high-quality lower receiver such as this Aero Precision M5, then meticulously adding the necessary components to bring your vision to life.

Unpacking the Superiority: Key Features of the Aero Precision M5 .308 Stripped Lower

The Aero Precision M5 .308 Stripped Lower Receiver is engineered with features that not only simplify the building process but also enhance the overall durability and functionality of your finished rifle.

• Premium Material for Unyielding Strength: Machined from 7075-T6 forged aluminum, this lower receiver sets the standard for robust construction. 7075-T6 is an aerospace-grade aluminum alloy known for its exceptional strength-to-weight ratio and superior resistance to stress cracking and fatigue. This material choice ensures that your AR-10 foundation can withstand the intense pressures of magnum rifle cartridges and the rigors of demanding use, providing unwavering reliability for years to come.
• Durable Magpul FDE Cerakote Finish: The beautiful Flat Dark Earth (FDE) Cerakote finish isn't just for aesthetics; it provides a highly resilient protective layer. Cerakote is a polymer-ceramic composite coating renowned for its exceptional hardness, abrasion resistance, corrosion protection, and chemical resistance. This means your lower will be protected from environmental elements, cleaning solvents, and the wear and tear of regular handling, maintaining its appearance and integrity even in harsh conditions. The Magpul FDE shade is a popular choice, offering a tactical yet distinct look that complements a wide range of accessories and build themes.
• Threaded Pin Holes for Simplified Assembly: Two critical design enhancements significantly streamline the assembly process and improve long-term durability:
  • Rear takedown pin detent hole is threaded for a 4-40 set screw: This feature eliminates the frustrating "spring and detent launching into orbit" scenario common with traditional roll pin installations. A simple set screw securely holds the takedown pin detent and spring, making installation and future disassembly much easier and less prone to losing small parts.
  • Bolt catch is threaded for a screw pin (no roll pin needed): Similar to the takedown pin, the bolt catch on the M5 lower utilizes a threaded screw pin instead of a difficult-to-install roll pin. This not only prevents marring your receiver during installation but also ensures a much more secure and durable attachment for one of the most frequently manipulated components on the lower. These threaded solutions are a testament to Aero Precision's commitment to user-friendly design.
• Integrated Trigger Guard: The M5 lower features an integrated trigger guard, meaning it is machined directly into the receiver itself, rather than being a separate, bolted-on component. This design eliminates the gap often found between traditional trigger guards and the pistol grip, providing a more robust and comfortable grip area. It also removes a potential point of failure and contributes to the overall sleekness of the receiver.
• Versatile Selector Markings: The selector markings on this lower are designed to accommodate a wide range of safety selector throws, including 45, 60, or 90-degree options. This flexibility ensures compatibility with nearly any safety selector on the market, including specialized designs like Battle Arms Development short throw safety selectors, without requiring modifications. This allows builders to choose a safety mechanism that perfectly matches their operational preference.
• No Gap with Aftermarket Pistol Grips: A common aesthetic and ergonomic concern for builders is a noticeable gap between the pistol grip and the receiver. The Aero Precision M5 lower is precisely machined to ensure a seamless, gap-free fit with virtually all aftermarket pistol grips. This attention to detail results in a cleaner, more professional-looking build and a more comfortable shooting experience.
• "Cal Multi" Markings: The receiver is marked "CAL MULTI" (multi-caliber), indicating its versatility beyond just .308 Winchester. This lower serves as a perfect foundation for various large-frame AR calibers, including but not limited to 6.5 Creedmoor, .260 Remington, .338 Federal, and many others that utilize the AR-10 platform. This provides builders with immense flexibility to adapt their rifle for different hunting scenarios, long-range shooting disciplines, or specialized applications by simply swapping upper receiver groups.
• Standard AR-308 Component Compatibility: Crucially, this M5 lower is designed to work seamlessly with standard AR-308 components and magazines. This ensures that sourcing parts for your build is straightforward and that you can leverage the vast ecosystem of AR-10 aftermarket parts and accessories available today. This compatibility is vital for both ease of assembly and future upgrades.
• Lightweight Design: Weighing in at just 12 ounces, this lower receiver contributes to a well-balanced and manageable rifle, especially important for large-frame AR builds which can sometimes become unwieldy. The optimized design ensures strength without unnecessary bulk.

The Aero Precision Ecosystem: The Perfect Pairing

While the Aero Precision M5 .308 Stripped Lower Receiver is compatible with standard AR-308 components, it is optimally designed to pair with the Aero Precision M5 (.308) Lower Parts Kit (LPK). This dedicated LPK includes custom takedown and pivot pins specifically sized for the M5 platform, as well as an extended magazine catch button for enhanced ergonomics. Using the matching Aero Precision LPK ensures the highest level of fit, finish, and functional reliability, eliminating potential headaches associated with mismatched parts from various manufacturers. Building with Aero Precision components throughout your lower receiver ensures a harmonious and reliable system.

Building Your AR-10: What You'll Need and Legal Considerations

When you acquire the Aero Precision M5 .308 Stripped Lower Receiver (UPC: 815421020502), you're taking the first essential step in building a complete AR-10. This component is legally considered the "firearm" by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). Therefore, its shipment to a Federal Firearm License (FFL) dealer is required for transfer to you, ensuring compliance with all federal, state, and local regulations. This product is proudly Made In America, reflecting a commitment to quality manufacturing standards.

To complete your AR-10 lower receiver and eventually a functioning rifle, you will generally need the following components and tools:

Essential Components for a Complete Lower:

• Aero Precision M5 (.308) Lower Parts Kit (LPK): Highly recommended for optimal fit and function. This includes the trigger group, pistol grip, safety selector, magazine catch, bolt catch, buffer retainer, and the custom takedown and pivot pins.
• Buffer Tube (Receiver Extension): Specific to the AR-10 platform, often A2 or carbine length.
• Buffer and Buffer Spring: Caliber and gas system specific; crucial for reliable cycling.
• Castle Nut and End Plate: Secures the buffer tube.
• Stock: Choose based on desired ergonomics and application (fixed or adjustable).

Recommended Tools for Lower Receiver Assembly:

• Armorer's Wrench: For castle nut and buffer tube installation.
• Roll Pin Punches (or a vice block and screw drivers for the threaded pins): Though less needed with Aero's threaded pins, a set of punches can still be useful for other LPK components.
• Nylon or Brass Hammer: For gentle tapping without marring.
• Vice Block (Lower Receiver): Securely holds the lower during assembly.
• Torque Wrench: For proper tightening of components to specifications.
• Gun Grease/Lubricant: For smooth operation of parts.

By carefully selecting each component and utilizing the correct tools, you can assemble a lower receiver that is both functionally superior and aesthetically pleasing.

Applications and Versatility of Your M5 .308 Build

The versatility of the Aero Precision M5 .308 Stripped Lower Receiver allows for the creation of an AR-10 rifle perfectly suited for a multitude of applications:

• Long-Range Precision Shooting: When paired with a match-grade upper receiver in calibers like 6.5 Creedmoor or .308 Winchester, the M5 platform provides the stability and accuracy required for engaging targets at extended distances.
• Hunting: Ideal for medium to large game, a .308 AR-10 offers ample power, rapid follow-up shots, and excellent ergonomics for diverse hunting environments. Its multi-caliber capability allows for quick caliber changes for different game.
• Tactical and Self-Defense: A robust AR-10 chambered in .308 provides significant stopping power and reliability for home defense or professional tactical applications.
• Competitive Shooting: The M5 platform can be configured for various competitive disciplines, offering the reliability and customizability needed to gain an edge.
• General Purpose/Recreational Shooting: For enthusiasts who appreciate the power and modularity of a large-frame AR, a custom build ensures a rifle that is both enjoyable to shoot and a source of pride.

Why Trust Aero Precision and Purchase from DEGuns?

Aero Precision has established itself as a leading manufacturer in the firearms industry, renowned for its commitment to precision engineering, rigorous quality control, and innovative design. When you choose an Aero Precision M5 lower, you are investing in a product that has undergone stringent testing and adheres to the highest manufacturing standards. Their dedication to producing mil-spec components ensures that every piece meets exact tolerances, contributing to reliable and consistent performance in your finished rifle. This brand's reputation for quality and performance is why it's a top choice for serious builders.

When you're ready to start your custom AR-10 journey, purchasing your Aero Precision M5 .308 Stripped Lower Receiver from DEGuns ensures a seamless and reliable experience. DEGuns is a trusted source for high-quality firearms and components, offering a wide selection of Aero Precision products designed to complete your build. Their commitment to customer service and inventory of essential parts, including the recommended Aero Precision M5 (.308) Lower Parts Kit, makes DEGuns the ideal partner for your next firearm project.

The Aero Precision M5 .308 Stripped Lower Receiver in Magpul FDE Cerakote is more than just a component; it's the solid foundation upon which you can build a rifle capable of exceptional performance, customized to your exact specifications. Begin your precision AR-10 build with confidence and quality.

Aero Precision M5 .308 Stripped Lower Receiver Specifications

Feature	Detail
FFL Transfer	Required to FFL Dealer
Made In	America
SOT Shipping	Not Required
Platform	M5 (AR-10)
Material	Machined from 7075-T6 forged aluminum
Finish	Magpul FDE Cerakote
Markings	"Cal Multi"
Compatibility	Standard AR-308 components & magazines
Weight	12 oz
SKU	APAR308005C
UPC	815421020502