The Mossberg 940 series is a modern lineup of semi-automatic shotguns designed for versatility and performance. Chambered in 12 gauge, the 940 series features an innovative gas-operated system that enhances reliability and reduces recoil, capable of up to 1500 rounds between cleanings. It includes models like the 940 JM Pro, tailored for competition shooting with a 24-inch barrel and extended magazine tube, and the 940 Tactical, optimized for defensive use with an 18.5-inch barrel and ghost ring sights. The series offers a durable design with corrosion-resistant internal parts and finishes, including a chrome-plated chamber and bore. The enlarged loading port, elongated elevator, and anodized follower contribute to smooth operation. For user comfort, the 940 series features an adjustable stock for length of pull adjustability, aggressive texturing on the stock and forend for a secure grip, and a robust synthetic stock. The modular design allows for easy customization with aftermarket parts. Overall, the Mossberg 940 series combines cutting-edge technology with practical features, providing a reliable and adaptable shotgun platform for diverse shooting needs.