The Mossberg 940 Pro Tactical SPX 12 Gauge 18.5" Shotgun (Mossberg part no. 85179) takes Mossberg’s gas-operated 940 platform and loads it with tactical features: a shotshell carrier on the receiver, a heat-shield forend, and built-in fiber-optic ghost ring sights for fast, accurate hits under stress. The 18.5-inch cylinder-bore barrel keeps the gun quick to swing indoors, and additional optic-mounting options let shooters add a red dot without giving up the factory ghost ring sight setup. It’s built to run hard with minimal maintenance, a priority for any defensive or duty shotgun.

Key Specifications

• Chambered in 12 gauge.
• Barrel length is 18.5 inches with a cylinder-bore choke.
• Magazine capacity is 7+1 rounds.
• Sighting is handled by built-in fiber-optic ghost ring sights.
• The forend integrates a heat-shield and shotshell carrier.
• Action type is gas-operated semi-automatic.
• Ships with Cylinder Bore choke tube(s).
• Overall length is approximately 46.3500-inch inches.

Frequently Asked Questions

Can I mount a red-dot optic on this shotgun?
Yes, the receiver includes additional direct optic-mounting options alongside the factory ghost ring sights.

How many shells does it hold?
Standard capacity is 7+1 rounds of 12-gauge ammunition.

Buy the Mossberg 940 Pro Tactical SPX 12 Gauge 18.5-inch Shotgun

Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL. Explore more Mossberg firearms in our Semi Auto Shotguns lineup.