Now in its 50th year of production, the lightning-quick Model 552 BDL Speedmaster is the only American-made 22 autoloader that handles 22 short, long and long rifle cartridges interchangeably. Like its pump-action counterpart, it features adjustable big-game sights, positive cross-bolt safety and a grooved receiver for scope mounts. Will chamber 22 short, 22 long and 22 long rifle cartridges.