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The B&T APC (Advanced Police Carbine) is a family of firearms produced and manufactured by B&T (formerly known as Brügger & Thomet) of Switzerland. Announced in 2011, the submachine gun series uses standard 9×19mm (APC9), .40 S&W (APC40), 10mm Auto (APC10) and .45 ACP (APC45) ammunition.