The Mossberg 940 Pro Tactical (85163) is a semi-automatic shotgun chambered in 12 gauge with an 18.5-inch matte blued barrel and a 3-inch chamber. It ships with an Accu-Choke, a drilled and tapped receiver, and a black synthetic stock with adjustable length of pull. Capacity is 4+1 rounds. 
 

Key Specifications 

• Brand: Mossberg 
• Model: 940 Pro Tactical 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 4+1 
• Barrel Length: 18.5 in 
• Color/Finish: Black 
   

Detailed Features 

• 18.5-inch matte blued barrel with 3-inch chamber 
• Accu-Choke system included 
• Drilled and tapped receiver for optics mounting 
• Adjustable length-of-pull black synthetic stock

Owners of the Mossberg 940 Pro Tactical (85163) frequently highlight the drilled and tapped receiver as a practical upgrade over base models, making optics installation straightforward. The Accu-Choke system is appreciated for giving flexibility between choke patterns without needing an aftermarket solution.

The adjustable LOP stock is a feature that gets positive attention from shooters who share the gun or want a precise fit for gear-laden use. Most owners find reliability with standard and higher-pressure loads to be solid; lighter target loads occasionally cause short-cycling until the gun breaks in.

At the Pro Tactical tier, buyers generally feel the package is well-configured for defensive or patrol use. The matte blued finish is functional but some owners note it shows holster or case wear faster than a Parkerized or cerakote surface would.