Shop by Brand

House brands, collaborations, and a curated set of third-party brands we've vetted ourselves.

Featured Brands:

A3 Industries The brace half of the HDA3 system — ALM-style, modular-folding, and direct-fit options. HDA3 The stock half — same chassis pattern, full SBR / rifle compliance. A3-JMK Platform-specific adapters, cheek risers, sling hardware, and replacement parts.
B&T JMK Customs Lingle Industries Magpul Reptilia Corp Rise Armament SB Tactical Skye Strike Industries Timney UTG

About Our Brand Curation

A3 carries a tight, vetted set of brands beyond our own house lineup. We don't list a brand we haven't run ourselves, and we don't carry products we wouldn't put on our own builds. Brands grouped here include Magpul (industry standard), B&T (premium imports), Strike Industries (USA-made tactical), SB Tactical (brace innovation), Timney (triggers), Reptilia Corp (optics mounting), and a handful of smaller specialist brands selected for fit, finish, and platform-specific expertise. Each brand page filters our catalog to only that brand's products, with cross-cutting platform compatibility filters available in the sidebar.

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