Mossberg's 590S Shockwave is a 12-gauge pump-action firearm built on the 590 receiver with a 14.37-inch heavy-walled cylinder-bore barrel and a Raptor bird's head grip in place of a stock. It measures 26.37 inches overall and weighs 5.3 pounds in matte blue. The 3-inch chamber accepts 1 3/4-inch, 2 3/4-inch and 3-inch shells in any mix, which gives 8+1, 5+1 or 4+1 capacity depending on shell length.

The corn-cob forend has a hand strap to keep the support hand in place, the safety sits on top of the receiver where either thumb can reach it, and the action uses twin bars, dual extractors, steel-to-steel lockup and an anti-jam elevator. A plain bead on a cylinder bore keeps aiming simple. This is a range and home-defense piece rather than a hunting gun; the stockless layout is what keeps it this short, and the 1 3/4-inch shell option is what pushes capacity to nine.

Key features

• 12 gauge, 3-inch chamber, takes 1 3/4 to 3-inch shells
• 8+1, 5+1 or 4+1 depending on shell length
• 14.37-inch heavy-walled barrel, 26.37 inches overall, 5.3 pounds
• Raptor bird's head grip, corn-cob forend with strap
• Top-mounted safety, twin action bars, dual extractors

The Shockwave ships to the Oregon FFL dealer you name at checkout, and the dealer runs the Oregon State Police check before transfer.