The HK P30 spring Airsoft gun with a metal slide is an authentic HK replica. It has a built-in hop-up system for longer times in between reloading and an extended life trigger system for improved performance. The metal slide and 15-shot capacity places this gun above its competition at the price point. Also comes with 400 6 mm plastic BBs for use with the gun. Licensed Trademark of Heckler & Koch GmbH