Stripped Billet Upper Receiver Mil-Spec

This Stripped Billet Upper Receiver is a foundational component for building a reliable and precise AR-15. Machined from a solid block of 7075-T6 aluminum, it provides a rigid platform for your barrel and handguard, directly contributing to improved accuracy. If you’re assembling a custom rifle or replacing a factory upper, this Mil-Spec receiver from Miami Shooters Supply offers a perfect balance of strength and refined aesthetics, shipped directly to your door.

Key Features

• CNC-machined from a solid 7075-T6 aluminum billet for superior strength and reduced weight.
• Manufactured to Mil-Spec dimensions for guaranteed compatibility with standard AR-15 parts.
• Features a flared ejection port for reliable case ejection and includes a forward assist and shell deflector.
• Machined with M4 feed ramps for smooth and reliable ammunition cycling.
• Includes a threaded port for a standard dust cover installation (dust cover and rod not included).
• Stripped design allows you to select and install your own barrel, handguard, and bolt carrier group components.

Built For

This upper receiver is ideal for the builder who demands a robust foundation for a duty-grade or precision-oriented rifle. It’s the correct choice for anyone assembling a custom AR-15 from the ground up or upgrading an existing platform with a more durable receiver. Its Mil-Spec compatibility ensures a straightforward build process with a wide range of available components.

Specifications

• Material: 7075-T6 Aluminum, Hardcoat Anodized
• Compatibility: Mil-Spec AR-15 platform (compatible with standard lower receivers)
• Caliber: 5.56 NATO / .223 Remington
• Thread Pattern: Standard 1-14″ TPI barrel nut threads
• Included: Stripped upper receiver, forward assist, and ejection port cover installed.

FAQ

Is this a complete upper assembly?
No, this is a stripped billet upper receiver. It requires you to install a barrel, handguard, bolt carrier group, and charging handle to complete your upper assembly.

Will this fit on any AR-15 lower receiver?
Yes. This upper receiver is machined to standard Mil-Spec dimensions, ensuring compatibility with the vast majority of Mil-Spec AR-15 lower receivers on the market.