Mossberg 590 Chainsaw 12GA Pump, 18.5 in Barrel, Pistol Grip

The Mossberg 590 Chainsaw is a pump-action 12 Gauge shotgun configured with an 18.5-inch stand-off barrel and a fixed synthetic pistol grip. It is fitted with a tri-rail forend and a chainsaw-style top handle and features an ambidextrous safety. This configuration is intended for compact, utility-focused roles including home defense and duty use.

Key Specifications

• Manufacturer: Mossberg and model designation 590.
• Caliber/Gauge: 12 Gauge.
• Action: Pump Action.
• Barrel length: 18.5 inches with a stand-off/breacher profile.
• Barrel type: Stand-Off.
• Barrel finish: Matte blued.
• Stock: Synthetic pistol grip (black).
• Safety: Ambidextrous.
• Chokes included: Cylinder bore.
• Max chamber size: 3 inches.

Built for reliable, straightforward performance in compact roles, the 590 Chainsaw combines rugged construction, ambidextrous controls and a railed forend for accessory mounting. Its practical layout and durable finishes make it a pragmatic choice for shooters seeking a compact pump shotgun for home defense and duty applications.