The Century Arms Centurion A4 is a semi-automatic shotgun chambered in 12 GA with a 20-inch barrel and a 3-inch chamber. This variant is finished in Tungsten Cerakote and has a 5+1 round capacity. 
 

Key Specifications 

• Brand: Century Arms 
• Model: Centurion A4 
• Caliber: 12 GA 
• Action: Semi Auto 
• Capacity: 5+1 rounds 
• Barrel Length: 20 inches 
• Color/Finish: Tungsten Cerakote 
   

Detailed Features 

• Semi-automatic operation with a 20-inch barrel 
• Tungsten Cerakote finish for corrosion resistance 
• 3-inch chamber 
• 5+1 round capacity

Owners who picked the Tungsten Cerakote version often mention the finish as the deciding factor. The Cerakote application looks even and holds up to field use and weather better than traditional bluing. A few owners note it is more neutral in tone than expected from photos, which suits buyers who wanted something between black and OD Green.

Function-wise, the Centurion A4 in Tungsten performs the same as other variants. Reliability is consistent once the gun breaks in, though some owners flag that initial cycling with lighter loads can be sluggish before the action seats properly. The 20-inch barrel keeps the platform balanced.

On value, the Cerakote finish adds a small premium over the standard black model that most buyers consider worthwhile. Aftermarket support is limited, and parts availability can be slower than domestic alternatives, which a handful of owners cite as the main downside.