Yankee Hill Machine Black Diamond AR-15 9.3" M-LOK Mid-Length Free Float Handguard

The Yankee Hill Machine Black Diamond M-LOK free-float handguard is a lightweight drop-in upgrade for AR-15 rifles. It is precision machined from 6061-T6 aluminum and finished in mil-spec hardcoat matte black anodizing for long-term corrosion resistance and durability in the field.

This 9.3" mid-length handguard provides a generous free-float mounting surface around the barrel for improved accuracy, while slim M-LOK-compatible slots along the sides and bottom allow direct attachment of lights, lasers, grips, bipods, and other accessories. A continuous T-marked Picatinny top rail runs the full length for mounting red dots, scopes, backup iron sights, and lasers.

With an inner diameter of 1.75" and an installed weight of roughly 10.4 oz, the Black Diamond adds minimal weight to a build while delivering a rigid, snag-free platform. It installs with the included barrel nut, jam nut, and anti-rotation screws, and ships with installation instructions. Made in the USA.