Fierce Firearms LACHSTU Chassis Kit Tungsten Gray AR-15 Long Action

The Fierce Firearms LACHSTU Chassis Kit is a modular long action stock system finished in Tungsten Gray, engineered to fit AR-15 long action rifle platforms. Designed as a foundation for a custom rifle build or as a replacement chassis to refresh an existing setup, this kit gives shooters a clean, configurable platform to tailor ergonomics, balance, and accessory mounting on a long-action rifle.

Built around a long action footprint, the LACHSTU accepts most common long-action components and brings the modular feel of an AR-pattern chassis to precision and hunting builds. The Tungsten Gray finish delivers a modern, low-glare appearance well suited to both field and range use. Use it as the starting point for a new AR-15-style long-action rifle, or drop it onto a compatible existing barreled action to convert your rig into a more tactical or hunting-oriented platform.

Whether you are assembling a custom long-action build from the ground up or upgrading an older platform, the Fierce LACHSTU chassis kit delivers the modular foundation and clean Tungsten Gray styling to get the job done.