NCSTAR Shotgun Rails and Bayonet Mount Remington 870 Black. These Shotgun Scope Bases & Rails from NcSTAR include a bayonet lug to securely mount US M7 and M9 bayonets. Use the 2 side rails to mount a flashlight laser or other optic unit with the NCSTAR Shotgun Tactical Tube Mount w/Picatinny Rails. Customize your shotgun for more gear and more functions with the NCSTAR Shotgun Tube Bayonet Mount w/Picatinny Rails. Specifications for NcSTAR ShotGun Rails Bayonet Mount Remington 870: Manufacturer: NcSTAR Color: Black Gun Model: Remington Model 870 Gun Make: Remington Tube Diameter: 1 in Condition: New Package Contents: NcSTAR ShotGun Rails Bayonet Mount Remington 870 2 Picatinny accessory rails Mounting tools What firearm models does the manufacturer say NcSTAR ShotGun Rails Bayonet Mount Remington 870 is compatible with? The manufacturer says that NcSTAR ShotGun Rails Bayonet Mount Remington 870 is compatible with Remington Model 870NCSTAR MSHBAYREM: Shotgun Rails and Bayonet Mount Remington 870 Black