Shipping Information:
We are experiencing a large increase in orders. Non-firearm orders are estimated to ship within 12 business days after the order is placed. Firearm orders will require more time. We apologize for any inconvenience. We are working to process and ship each order as quickly as possible.

If you would like to request a cancellation of your order, you may do so by visiting your Order History page, and selecting the order you would like to cancel. Due to the high demand and limited supply of certain items, we have temporarily suspended dealer sales in order to service as many of our own customers as possible.

Mossberg 590 Shockwave 20 Gauge Pump-Action with 14 inch Barrel

  • Item Number: 50657
  • /
  • View More Items by Mossberg
  • /
  • Condition: NEW
Temporarily Out of Stock
    $455.00
    $449.99
  • Includes free shipping
Share this
  • WINCHESTER FIREARMS SXP DEFENDER 20 GAUGE SHOTGUN

    Winchester SXP Defender 20 Gauge Shotgun
    $399.99

  • CITADEL PAX SHOTGUN BLK 20GA 20BBL

    Citadel PAX 20 Gauge Pump-Action Shotgun with Fiber Optic Front Sight
    $229.99

  • WINCHESTER FIREARMS SX4 FIELD 20 GAUGE SHOTGUN WITH WALNUT STOCK

    Winchester SX4 Field 20 Gauge Shotgun with Walnut Stock
    $1,069.99 $949.99

  • BROWNING FIREARMS CITORI CXS 20 GAUGE O/U 30``

    Browning Citori CXS 20 Gauge Shotgun with Walnut Stock
    $1,949.99

  • CITADEL PAX SHOTGUN NICKEL 20GA 20BBL

    Citadel PAX 20 Gauge Pump-Action Shotgun with Nickel Finish and Fiber Optic Front Sight
    $249.99

  • CITADEL CITADEL PUMP ACTION SHOTGUN 20GA 20` BLACK FINISH

    Citadel PAT 20 Gauge Pump-Action Shotgun with Ghost Ring Sights and Picatinny Rail
    $229.99

  • SAVAGE 220 SLUG GUN 20GA SPECIALTY (CAMO)

    Savage 220 Slug 20 Gauge Specialty Shotgun with Camo Stock
    $695.00 $513.67

  • WINCHESTER FIREARMS SX4 WATERFOWL HUNTER, 20GA, 28BBL, MO SHADOW GRASS BLADES

    Winchester SX4 Waterfowl Hunter 20 Gauge Shotgun with Mossy Oak Shadow Grass Blades Camo
    $1,069.99 $889.99

  • WINCHESTER FIREARMS SX4 FIELD SEMI AUTO 20GA, 28BBL, WALNUT STOCK

    Winchester SX4 Field 20 Gauge Semi Auto Shotgun with Walnut Stock
    $1,069.99 $889.99

  • SAVAGE 220 SLUG GUN 20GA SPECIALTY

    Savage 220 Slug 20 Gauge Specialty Shotgun
    $582.00 $469.89

  • SAVAGE M301 TURKEY XP 20 GA 26 IN BBL MOSSY OAK BOTTOMLANDS CAMO WITH RED DOT

    Savage M301 Turkey XP Bottomland 20 Gauge Single Shot Shotgun with Red Dot
    $239.00 $199.99

  • BROWNING FIREARMS CITORI WHITE LIGHTNING 20 GA 28-INCH BARREL

    Browning Citori White Lightning 20 Gauge Over and Under Shotgun
    $2,669.99 $2,179.99

  • Federal 20 Gauge 3 in 1-1/4 oz 5 Shot Strut-Shok Turkey Load 10/Box

    Federal 20 Gauge 3 in 1-1/4 oz 5 Shot Strut-Shok Turkey Load 10/Box
    $10.95 $7.05
    ($0.71 / round)

  • Federal 20 GA Top Gun Target 2 3/4 Size 9 25/Box

    Federal 20 GA Top Gun Target 2 3/4 Size 9 25/Box
    $5.99
    ($0.24 / round)

  • Hornady 20 Gauge 250 gr SST Shotgun Slugs 5/Box

    Hornady 20 Gauge 250 gr SST Shotgun Slugs 5/Box
    $16.27 $10.99
    ($2.20 / round)

  • Winchester 20 Gauge 2-3/4 Inch 5/8 oz 2-Piece Sabot Super-X Slug 5/Box

    Winchester 20 Gauge 2-3/4 Inch 5/8 oz 2-Piece Sabot Super-X Slug 5/Box
    $15.99
    ($3.20 / round)

  • Federal 20 Gauge 3 inch 1 1/2 oz Heavyweight TSS #7 5/Box

    Federal 20 Gauge 3 inch 1 1/2 oz Heavyweight TSS #7 5/Box
    $35.95 $27.99
    ($5.60 / round)

  • Federal 20 Gauge 3 inch 1-5/8 oz Heavyweight TSS #7,9 5/Box

    Federal 20 Gauge 3 inch 1-5/8 oz Heavyweight TSS #7,9 5/Box
    $46.95 $32.99
    ($6.60 / round)

  • Federal 20 Gauge 3-In 1-5/8 oz 8 and 10 Shot Heavyweight TSS 5/Box

    Federal 20 Gauge 3-In 1-5/8 oz 8 and 10 Shot Heavyweight TSS 5/Box
    $32.99
    ($6.60 / round)

  • Federal 20 Gauge 3 Inch 1 7/16 oz - 5,6,7 Shot 3rd Degree 5/Box

    Federal 20 Gauge 3 Inch 1 7/16 oz - 5,6,7 Shot 3rd Degree 5/Box
    $21.95 $16.49
    ($3.30 / round)

Product Description

The brand new 590 Shockwave 20 Gauge offers Mossberg's legendary pump-action reliability in a compact 14" barreled package.

The Shockwave Raptor bird’s head pistol grip is uniquely shaped to minimize felt recoil. Includes all the features that have made Mossberg pump-actions the choice for millions worldwide: ambidextrous safety, dual extractors, positive steel-to-steel lockup, twin action bars, and a smooth operating anti-jam elevator.

The 590 Shockwave is classified as fully-compliant by the BATFE, so this model requires no Tax Stamp for transfers. Be sure to check local laws to determine further compliance. Returns due to non-compliance are subject to additional shipping and return fees. Must be 21 years of age or older to purchase.

Firearm Specifications

  • Manufacturer: Mossberg
  • Model: 590 Shockwave
  • Gauge: 20
  • Capacity: 6
  • Chamber: 3
  • Barrel Type: Heavy-Walled
  • Barrel Length: 14"
  • Sight: Bead
  • Choke: Cylinder Bore
  • Barrel Finish: Matte Blued
  • Weight: 4.9
  • Length: 26.37
  • UPC: 015813506571

Customer Comments & Questions

Customer Reviews

(5 out of 5) My first 20 gauge
by from Henderson, NV on

Always been a 12 gauge owner, this is my first 20. All good except for loading. The narrower loading port is not a good fit for my thumb. Pushing the shells in with index finger is slower and weaker than thumb loading. Not a deal breaker.

(5 out of 5) Better than you think....
by from Southeast TX, TX on

Bought the 12ga model but sold it due to the “Not Fun” recoil. This 20ga model is the sweet spot, totally manageable and actually fun to shoot. The wife agrees. The 590A1 quality is excellent as it’s always been. I shoot slugs, Buck and field loads through this all the time and have became pretty accurate with it. It doesn’t look like it would be but if you practice a lil it’s better than your think. This is really a cool take on a defensive “Home Defense” firearm that will serve you, your mom, your wife, your grandma/grandpa well. I saw they cane out with a 410 model and that might be the super sweet spot. Might have to try it out next! I highly recommend this model Shockwave!