Upgrade your Panzer or Benelli M4 shotgun with this Panzer M4 Tactical 7-Round Full-Length Magazine Tube in Marine/Nickel, engineered for increased capacity and a polished, professional look. Made from high-quality steel, this tube replaces the factory unit to provide a true 7-round capacity with 2 3/4" shells, eliminating the need for external extensions. The Marine/Nickel finish delivers a bright, durable appearance that pairs perfectly with silver or stainless-style tactical builds. Compatible with most Benelli M4-style shotguns, including the Panzer M4, this threaded tube installs easily and offers reliable performance for shooters upgrading their platform.