S&J Hardware Mossberg 590 +2 Magazine Extension

$70.00 USD $80.00 USD

S&J Magazine extensions are extensively field tested and meet or exceed law enforcement and military requirements.

This extremely durable, high quality, solid steel magazine extension comes with everything you need to upgrade your shotgun to the next level.

S&J Hardware Magazine Extensions are CNC milled from pure steel, Just like your gun. Don't settle for aluminum.


  • Removable 3 Position Front Sling Plate
  • Super Duty Magazine Spring.
  • No Jam Mag Follower.


  • Fits Mossberg 590, 590A1, 835, 935 Series 12 Gauge Shotguns
  • CNC Milled From Solid Steel
  • Finish:
    • Controlled Gas Nitride, Mil-Spec Black Oxy Finish
    • Electroless Nickle
  • Total Length:
    • 4 1/4" (590+2)
  • Made in Canada