Shop by Product Type
Browse all 12 categories. Filter by firearm compatibility, brand, finish, or price.
One stock. Dozens of platforms.
Engineered in collaboration with Haga Defense for strength, aesthetics, and platform-agnostic adaptability.
HDA3 is a modular stock and brace system designed to integrate seamlessly across dozens of firearm platforms.
Convert. Compact. Run.
Compatible with Foxtrot Mike, BRN-180, and PSA JakL uppers.
Built around a bufferless AR lower — the rest of the chassis is engineered to fold function, modularity, and compactness into a single platform.
Browsing by Product Type
If you know what you need but haven't picked a firearm yet — say you're shopping for a stock with a 1913 mount that'll move between your Stribog and your Kuna — the product-type browse is the place to start. Every category groups our lineup by physical product family, and the platform compatibility filter on the sidebar lets you narrow further once you've chosen. For products that ride multiple firearms via adapter (most HDA3 stocks, our Modular Folding Brace, the Triad chassis), platform compatibility is selected at purchase via the PDP variant — so one product, multiple platforms, no SKU explosion.
