CMMG Mk57 AR-15 Stripped Lower Receiver - Armor Black - 57CA2CB-AB

Elevate your AR-15 build with the CMMG Mk57 Stripped Lower Receiver in Armor Black, the ultimate foundation for a high-performance 5.7x28mm firearm. Engineered for precision and reliability, this lower receiver combines rugged durability with seamless compatibility, allowing you to craft a custom rifle or pistol that delivers exceptional accuracy and reduced recoil. Whether you’re a seasoned builder or stepping into the world of tactical firearms, the Mk57 sets the stage for a superior shooting experience.

Key Features

• Forged 7075-T6 Aluminum Construction: Provides superior strength and lightweight performance, ensuring your build withstands rigorous use without adding unnecessary weight.
• Cerakote Armor Black Finish: Offers exceptional corrosion resistance and a sleek, professional look that holds up against environmental wear and tear.
• Integrated Trigger Guard: Enhances safety and ergonomics, protecting your trigger during handling in diverse conditions.
• Mil-Spec Compatibility: Accepts standard AR-15 components like trigger groups, safeties, and pistol grips, simplifying assembly and customization.
• Optimized for 5.7x28mm Platform: Designed to pair perfectly with CMMG’s Radial Delayed Blowback uppers, unlocking the full potential of the 5.7x28mm cartridge for low recoil and high velocity.

Specifications

• Material: Forged 7075-T6 Aluminum
• Finish: Cerakote Armor Black
• Weight: 9.75 oz
• Length: 8.2 inches
• Width: 1.35 inches
• Height: 5.1 inches
• Caliber Compatibility: 5.7x28mm (AR-15 pattern)

Why Choose the CMMG Mk57 Lower Receiver?

Building an AR-15 shouldn’t mean compromising on quality or compatibility. The Mk57 addresses common builder challenges like fit issues and durability concerns by offering a precision-machined, mil-spec foundation tailored for the efficient 5.7x28mm round. Users appreciate its flawless integration with dedicated uppers, resulting in a smoother shooting platform with minimal felt recoil—ideal for home defense, target practice, or competitive shooting. Invest in this stripped lower to create a firearm that performs as good as it looks, backed by CMMG’s reputation for innovation in tactical accessories.

Ready to assemble the AR-15 of your dreams? Secure your CMMG Mk57 Stripped Lower Receiver – Armor Black today and take the first step toward unmatched reliability and precision on the range.

Frequently Asked Questions

Q: Is the CMMG Mk57 lower compatible with standard AR-15 parts?
A: Yes, this stripped lower accepts mil-spec AR-15 trigger groups, safeties, pistol grips, and other lower components, making it easy to customize your build.

Q: What sets the Mk57 platform apart for 5.7x28mm builds?
A: The Mk57 is specifically engineered for 5.7x28mm ammunition, featuring a design that supports dedicated magazines and pairs seamlessly with CMMG’s Radial Delayed Blowback system for enhanced reliability and reduced recoil.

Q: How durable is the Armor Black finish?
A: The Cerakote Armor Black finish provides excellent resistance to scratches, chemicals, and corrosion, ensuring long-lasting protection in demanding environments.