The ultra-reliable ARGO system incorporated into the Benelli MR1 provides reliability for the U.S. military and makes the MR1 the best home-defense rifle available. Built to the same tough military specifications and embodying the solid reliability that the U.S. Marines rely upon, the MR1 has no equal among home-defense weapons. It features a stainless-steel, self-cleaning piston that operates directly against the rotating bolt, thereby eliminating the need for complex linkages. The piston-driven system incorporates a gas port located just forward of the chamber, where the gases are hotter and cleaner, resulting in less fouling and more reliable cycling.
