Mossberg 590 Shockwave 18.5" CALIFORNIA LEGAL - 12ga - Black

California compliance

• Status: Legal to own in California as the manufacturer builds it.
• Configuration: Factory. Nothing is modified. We inspect every shotgun before it ships to confirm it matches this listing.
• Learn more: California shotgun rules · FAQ

About this shotgun

Mossberg 590 Shockwave 18.5" is a pump-action 12 Gauge shotgun with an 18.5" barrel, 3" chamber and a 6-round capacity. It has a synthetic stock and bead. Finish: Black. Sold in the California configuration described above and inspected before it ships.

Manufacturer details

Key Features

• 7-Shot Clean Out Tube
• Corncob Forend w/Strap

Details

Specifications

• Brand: Mossberg
• Caliber: 12 Gauge
• Action: Pump Action
• Capacity: 6
• Barrel: 18.5 in
• Chamber: 3 in
• Weight: 5.5 lbs
• Stock: Synthetic
• Sights: Bead
• Choke: Fixed Cylinder
• Finish / color: Black
• California compliance: Factory Compliant
• Manufacturer part #: 50639
• UPC: 15813506397

Buying from WBT Guns

• Delivery: Free pickup at our La Mesa store with no transfer fee, or shipment to any California gun store you choose. Select your FFL at checkout.
• Compliance guarantee: Every firearm leaves our shop in the configuration described on this page, function-checked by our compliance team.
• Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
• Paperwork: Firearm Safety Certificate, DROS and California's 10-day waiting period apply. We handle each step with you at pickup.
• Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ · California Rifle Compliance Guide

WBT Guns is family-owned in La Mesa, California, and has configured firearms for California buyers since 2012.

A note on accuracy. We work hard to keep every listing correct, but specifications, images and compliance details come from many sources and can contain errors or change without notice. Images may show a configuration that is not California-legal. If a detail on this page matters to your decision, call us and we will confirm it against the actual firearm before you order. The compliance information here is general in nature and is not legal advice; California and local laws change, and the configuration described is confirmed at the time of sale. All sales are subject to applicable federal, state and local law and to the buyer's eligibility to purchase.