The HK4 380 ACP 7 Rounds Magazine is a high-quality accessory for Heckler & Koch HK4 handguns. Made of blued steel and steel, this magazine is designed for use with handguns in. With a capacity of 7 rounds, this magazine is ideal for practice shooting and target practice. Manufactured in Germany by Heckler & Koch, this magazine is a reliable and durable component for your firearm accessory collection.