North American Arms Guardian 32 Auto (ACP) 2.2in Stainless Pistol – 6+1 Rounds – Introduced in 1997, the Guardian 32 ACP is one of the few guns that fit comfortably in your pocket. The combinations of small size, high quality, and great stopping power have made it the most popular Guardian. Over the years, NAA has made many subtle improvements to the design, based in part on the many suggestions they receive from customers. The result is an extremely high quality gun that’s convenient, reliable, and very effective.