The Model 1322 is a pneumatic pump-action air pistol utilizing .22 (5.5 mm) caliber lead pellets. The pistol's integral pump lever mechanism is located underneath the barrel, integral to the forearm. This pump lever is cycled a variable number of times (up to a maximum of ten strokes) to store increasingly pressurized air in a chamber. When the trigger is activated, an air valve dumps the pressurized air into a transfer port integral to the breech, discharging the pellet from the barrel. According to the manufacturer, a maximum velocity of up to 440 ft/s (130 m/s) was achievable with ten pump strokes, using standard 14.3-grain .22 pellets. The Model 1322 features fully adjustable square notch rear and front fixed blade sights.