Mesa Tactical Picatinny Rail for Mossberg 500/590 Standard 4-1/2", Specifically Designed for the Mossberg 500 and 590
Mesa Tactical makes Picatinny optics rails for several popular shotgun models that feature pre-drilled and tapped holes in the tops of their receivers. Mossberg rails attach directly to the receivers of late-model (1997 and later) Mossberg pump shotguns with pre-tapped holes. Standard profile Mossberg rails are for general purpose optics mounting applications. Tall profile rails are only for use with Mesa Tactical Hightube telescoping stock adapters, as an alternative to adapter mount rails. Receiver mount rails allow easy access to the Mossberg safety switch. The hardware included with the Remington and Mossberg rails are for pump action shotguns. They can be used with semi-auto versions (Remington 1100 and Remington 11-87, or Mossberg 930) by grinding the fasteners down to the appropriate lengths.