Mossberg 590 Shockwave 20 gauge for sale
(20)
Mossberg 590 Shockwave 20 Ga, NON-NFA 14" Barrel No NFA Paperwork or Tax, 5rd
Brand:
Mossberg
Action:
Pump Action
Barrel Length:
14.375
Caliber:
20 Gauge
Capacity:
5
Finish Per Color:
Blued
(7)
Mossberg 590 Shockwave Laser Saddle 14.375" 20 Gauge Shotgun 3" Pump - 50637
Brand:
Mossberg
Action:
Pump Action
Barrel Length:
14.3
Caliber:
20 Gauge
Capacity:
5
Finish Per Color:
Black
Marketplace Insights
★ 4.7/5
based on 27 customer reviews across 2 variants from 20 retailers
Overwhelmingly praised 20-gauge shotgun praised for manageable recoil, compact design, and home defense capability, with few but notable concerns about safety mechanism and accessory compatibility.
What customers like
Manageable recoil48%
The 20g makes a perfect accessory for any tractor, atv, or golf cart.
Home defense capability44%
Great home defense weapon. Easy to load and aim.
Compact and portable30%
Short 14" barrel and raptor birds head stock provide a compact package
Fun to shoot26%
This thing is awesome. Like the title says it's a ton of fun to shoot.
Reliable performance19%
Great American made firearm! Rugged, reliable and a fantastic value.
Common concerns
Safety mechanism issues11%
The safety cannot be disengaged! From my hands back to Mossberg.
Difficult aim without practice7%
it is somewhat difficult to aim unless you are proficient from shooting fro the hip
Limited accessory compatibility7%
maybe another inch of barrel would allow a better fit for a rail to put a light on
Frequently Asked Questions
Mossberg 590 Shockwave 20 gauge for sale
What is the price of the Mossberg 590 shockwave?
Mossberg 590 Shockwave models typically retail around $469.99, with prices ranging from approximately $370 to $613 depending on gauge, capacity, and features.
Does the Mossberg 590 shockwave come in 20 gauge?
Yes, Mossberg offers the 590 Shockwave in 20 gauge. It is slightly lighter and produces less recoil than the 12 gauge version, making it more manageable for shooters sensitive to recoil.
Is the Mossberg 590 shockwave a good shotgun?
Whether it's "good" depends on your needs. It's reliable and compact for range use or vehicle carry, but most reviewers question its home defense value compared to full-size shotguns or handguns. The pistol grip takes practice, and capacity is limited. Prices run around $470.
Can a Mossberg 590 shockwave use a magazine?
No, the standard 590 Shockwave uses a fixed tube magazine under the barrel. However, Mossberg makes the 590M Shockwave variant, which accepts detachable box magazines in 5, 10, 15, and 20-round capacities. Both are pump-action shotguns available in 12 and 20 gauge.
What are the best upgrades for a shockwave?
Popular upgrades include tritium sights for low-light shooting, a pistol brace for better control, and a heat shield for the barrel. Many standard Mossberg 590 accessories are compatible. Keep additions minimal—the Shockwave's light, compact design is its primary advantage.
What is the best ammo for a Mossberg 590?
For the Mossberg 590 Shockwave in 20 gauge, Federal Shorty shells are a strong choice—they increase magazine capacity and reduce recoil. Standard 20-gauge buckshot or slugs also work well for defense. Test different loads at your range first, since individual guns pattern differently.
Is it legal to put a vertical grip on a shockwave?
Federal law prohibits vertical grips on handguns, but the Shockwave is classified as a "firearm" (neither pistol nor shotgun), so a vertical grip is generally legal under federal law. However, adding a full buttstock could reclassify it as an NFA short-barreled shotgun requiring registration. Consult the ATF to confirm your specific configuration.