The Yankee Hill Machine YHM-125 billet stripped lower receiver is designed as a precision-machined foundation for AR-15 builds and upgrades. It is machined from high-strength 7075-T6 aluminum and finished in a matte black hardcoat anodize to military specifications or better. The design includes an oversized magazine well and an integrated machined trigger guard to improve handling during assembly and use. This is a stripped lower; a lower parts kit, buffer and stock are required to complete the firearm.
Key Specifications
- The receiver is machined from 7075-T6 aluminum.
- The finish is black hardcoat anodized to Military Specification or better.
- Dimensions are 2.35 x 4.40 x 8.65 inches.
- This is a stripped lower receiver and requires a lower parts kit, buffer and stock to complete.
- The magazine well features oversized chamfers for easier magazine changes.
- It accepts all generations of PMAGs.
- It is compatible with Mil-Spec upper receivers.
- The trigger guard is a built-in oversized machined design.
- A tension screw is built into the lower to improve mating with Mil-Spec uppers.
- This item is not for sale to Illinois PICA.
The YHM-125 billet lower offers a durable, precisely machined platform for custom AR-15 projects. Its billet construction and hardcoat finish provide a solid base for builders who value fit, finish, and reliable compatibility with Mil-Spec components. Whether assembling a compact carbine or a general-purpose rifle, this lower provides the foundation for a quality build.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
