B&T® Parts

Welcome to PAI Defense, your authorized source for genuine B&T (Brügger & Thomet) replacement parts, armory maintenance components, and modular hardware upgrades. Engineered to exacting Swiss standards, our inventory includes factory-direct components designed to maintain, repair, and customize professional B&T inventories—including the APC series, SPC, GHM, and TP9 platforms. Whether your institutional armory requires routine maintenance spares, stock adapters, lower receivers, or tactical hardware upgrades, we provide reliable, factory-certified components built to ensure uninterrupted operational readiness.