This AR15 Billet Upper & Lower Receiver Combo is the foundational core of a precision rifle. Machined from a solid 7075-T6 aluminum forging, this set provides a rigid platform for serious shooters and builders who demand consistency. Miami Shooters Supply delivers this matched pair with fast shipping, ensuring your next build starts on a solid foundation. It’s designed for those who appreciate the enhanced durability and clean lines of a true billet machining process over a standard forged receiver set.
Key Features
- Machined from 7075-T6 aluminum billet for superior strength and a unique aesthetic.
- Matched upper and lower receiver set ensures a precise, rattle-free fit.
- Flared magazine well on the lower receiver for faster, more reliable reloads.
- Integrated trigger guard on the lower receiver for a seamless, durable design.
- Reinforced stress points around the takedown pin and buffer tube threads for long-term durability.
- Strictly machined to Mil-Spec dimensions for compatibility with the vast majority of AR-15 parts.
Built For
This receiver combo is built for the experienced shooter or custom builder assembling a duty-grade rifle or a high-end precision AR-15. It’s ideal for competitive shooters who need a reliable, rigid platform and for enthusiasts who value the meticulous craftsmanship of billet-machined AR15 parts. This set forms the perfect starting point for a showpiece build or a hard-use firearm.
Specifications
- Material: 7075-T6 Aluminum Billet
- Caliber Compatibility: Multi-Caliber (5.56 NATO / .223 Remington)
- Finish: Type III Hardcoat Anodized (Black)
- Compatibility: Standard Mil-Spec AR-15 internal components and barrel nuts.
- Lower Receiver Marking: “Multi-Cal”
FAQ
Is this a complete upper receiver assembly?
No, this is a stripped receiver set. It includes the bare billet upper and lower receivers. You will need to install all internal components, barrel, handguard, and stock to complete your firearm.
Does the lower receiver include a threaded bolt catch pin?
Yes, this billet lower receiver is designed with a threaded hole for a bolt catch roll pin, making installation significantly easier and more secure than with a standard punch-and-hammer method.


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