The Benelli M4 EXT H20 Tactical is a semi-automatic shotgun in 12 Gauge with an 18.5-inch barrel and a 7+1 round capacity. It has a Titanium Cerakote finish and comes with a five-position telescoping stock. 
 

Key Specifications 

• Brand: Benelli 
• Model: M4 EXT H20 Tactical 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 7+1 rounds 
• Barrel Length: 18.5 inches 
• Color/Finish: Titanium Cerakote 
   

Detailed Features 

• 18.5-inch barrel 
• 7+1 round capacity with extended magazine 
• Five-position telescoping stock 
• Titanium Cerakote finish for corrosion resistance 
• H20 designation indicating a weather-resistant configuration

Owners of the M4 EXT H20 Tactical point to the Titanium Cerakote finish as a practical upgrade for wet or coastal environments. The H20 designation gets called out specifically by those who use the shotgun in harsh conditions, and the general consensus is that it holds up well over time.

The five-position telescoping stock receives consistent praise for fitting a wide range of body types and gear configurations. Some owners note that the stock adjustment can feel stiff initially, but most report it loosens up with use. The 7+1 extended capacity is a frequent selling point among buyers who prioritize ready rounds over a more compact tube.

The M4 EXT carries a premium price, and opinions split on whether the extended magazine and Cerakote treatment justify the cost over a standard M4 configuration. Those who work in maritime or high-humidity settings tend to say yes; range-only owners sometimes question the value.