Haga Defense has released its new adjustable stock for Heckler & Koch G36 variants.

With S5 Tactical making the dream of owning a centerfire G36 a reality for many American shooters, and with the continued availability of the .22-caliber model, the natural next step for many owners is customization.

Haga Defense has built a solid reputation by pioneering adapters that allowed shooters to mount the Magpul ACR stock onto a variety of popular firearms platforms.

One of the most sought-after versions was the adapter for the G36, which gave the rifle a modernized, highly adjustable stock.

However, when Magpul Industries discontinued production of the standalone ACR stock, Haga Defense ultimately discontinued the adapter as well.

In collaboration with A3 Industries, Haga Defense has now produced what can be considered a product-improved version of the ACR-style stock. The system is available in both brace and stock variants.

Initial releases will be available through HKParts.net. Regular availability and ongoing production will also be available directly through Haga Defense beginning in early April.

The HDA3 is a modular, USA-made stock or brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and long-term durability without compromising aesthetics.

For more information, be sure to visit https://hkparts.net and https://hagadefense.com