 Fredericton was armed with one 4-inch (101.6 mm) gun forward and a 2-pound (0.9 kg) pom-pom gun mounted aft. Two Oerlikon 20 mm (0.8 in) cannon were mounted on the bridge wings for air defence. Depth charges, which were rolled from the stern through two ports or thrown from four launchers aft were used for anti-submarine warfare. Later in the war, she was outfitted with the more effective Hedgehog depth bomb throwers.
