The Mossberg 590 Chainsaw in 12 gauge (brand part no. 50692) is a pump-action firearm built around an 18.5-inch barrel, pairing the Shockwave platform’s compact profile with a signature top-mounted carry handle. Mossberg finishes the 590 Chainsaw in matte blued steel with a black synthetic stock-free grip and equips it with an ambidextrous safety. Because it ships without a shoulder stock, the 590 Chainsaw is classified by the ATF as a firearm rather than a shotgun; no NFA paperwork or tax stamp is required, only a standard FFL transfer. Among pump-action shotguns in the pump-action shotguns category, the 590 Chainsaw favors shooters who want the Shockwave’s compact profile with an integrated top handle.

Key Specifications

• Chambered in 12 gauge.
• Operates as a pump-action firearm.
• Features an 18.5-inch barrel.
• Overall length is 30.55 inches.
• Feeds from a tubular magazine with a 5-round capacity.
• Runs an ambidextrous safety.
• Equipped with a fixed bead sight.
• Includes a Cylinder Bore choke.
• Finished in matte blued steel.
• Classified by the ATF as a firearm, not a shotgun, due to its lack of a shoulder stock.

Frequently Asked Questions

What makes this different from a standard Shockwave? It adds a top-mounted carry handle to the Shockwave’s compact, stockless configuration.

Does this require a tax stamp? No, it ships with a standard FFL transfer; it is classified as a firearm rather than a shotgun, but no NFA paperwork is required.

Buy the Mossberg 590 Chainsaw 12 Gauge

The Shockwave’s compact profile with an integrated top handle is exactly what the 590 Chainsaw delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.