The next-generation MAG 5 12 gauge steel body magazine for many manufacturers models shotguns (compatibility list below). Along with an expanded feature set and greater compatibility, it incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability that exceed rigorous performance specifications. The MAG 5 features a long-life stainless steel spring, a four-way anti-tilt follower and constant-curve internal geometry for reliable feeding, and simple tool-less disassembly for easy cleaning.