The Yankee Hill Machine Diamond Series 13.1 Inch Free Float Picatinny Carbine Accessory is built from 6061-T6 aluminum and finished with hardcoat anodized matte black to military specifications or better. This carbine-length forearm measures 13.1 inches in overall length with dimensions of 2.55 X 5.10 X 13.10 inches.
The Diamond Series design features an AR-15 quad-rail configuration with an extended top rail for a gap-free fit and T-marked rails throughout. Diamond-shaped heat vents are incorporated into the design for thermal management. The free-float tube allows the barrel to move independently of the forearm for improved accuracy potential.
Each unit comes complete with a jamb nut, barrel nut, two anti-rotation screws, and the forearm tube, providing all necessary components for installation on AR-15 platforms. Whether you’re looking to upgrade your existing carbine or building from the ground up, the Yankee Hill Machine Diamond Series forearm delivers robust functionality and a full Picatinny accessory platform.
