The GG&G Mossberg 590 Magazine Extension is easy to install. It attaches quickly and easily without modification to the shotgun. This two shot Magazine Extension uses the factory follower.
Package includes a new extended length magazine spring to insure proper function.
- Perfect for Military, Law Enforcement, or Home Defense.
- Adds two additional rounds and protrudes 2 ¼” beyond the end of and 18 ½” barrel.
- The end cap of the magazine extension tube can be removed separately to facilitate cleaning and the use of a magazine plug.
- The magazine extension tube nut is CNC machined from wear resistant solid steel bar stock versus aluminum.
- The unique magazine tube extension nut is manganese phosphated in a non–reflective combat finish per Mil-Spec.