Built to compete and win. Inside the all new 940 JM Pro, you will find a new durable gas system, nickel boron-coated internal parts for smooth operation, and a competition-level loading port, elevator, and follower. Outside, an adjustable stock and streamlined for end sport Mossberg signature texturing, while a host of stylized, functional components combine for competition — optimizing speed, accuracy, and durability. Go with a winner — the 940 JM Pro. A winner… right out-of-the-box.  Designed in conjunction with World Champion shooter Jerry Miculek, the new 940 JM Pro is feature-rich, fast-cycling, and ultra-competitive.