The Cobra III pump action shotgun that allows you to shoot light target loads to heavy waterfowl loads. It utilizes a Beretta/Benelli Mobil Threads removable choke system and includes choke box and wrench. The Cobra III also features a highly durable stock with rubber recoil pad and swivel studs. The Marine model features a return spring in the forearm. Simply pull back on the forearm and release, the spring will return the forearm forward thus closing the chamber. This makes for rapid firing in a pump shotgun. The spring can be removed and the gun will work like a traditional pump. The Cobra III Marine is also fitted with a picatinny rail located under the forearm.