The Century Arms Centurion A4 is a semi-automatic 12-gauge shotgun with a 20-inch barrel and a 3-inch chamber. It has a 5+1 round capacity and comes finished in Flat Dark Earth Cerakote. The shorter barrel and FDE finish position it as a tactical-leaning field shotgun. 
 

Key Specifications 

• Brand: Century Arms 
• Model: Centurion A4 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 5+1 
• Barrel Length: 20 in 
• Color/Finish: Flat Dark Earth Cerakote 
   

Detailed Features 

• 20-inch barrel with 3-inch chamber 
• Flat Dark Earth Cerakote finish for corrosion resistance 
• 5+1 round capacity 
• Semi-automatic action in 12 gauge

Owners of the Century Arms Centurion A4 tend to cite the FDE Cerakote finish and the 20-inch barrel length as the main draws. The shorter barrel makes it more maneuverable indoors and in dense cover, and the Cerakote holds up well in wet conditions according to field reports.

The 5+1 capacity is seen as adequate for most tactical and hunting uses, though some buyers wish for a higher-capacity tube. Reliability with standard field loads is generally reported as good after a short break-in, though a few owners note sensitivity to very light loads.

Value is a recurring topic. Century Arms carries a polarizing reputation, and Centurion A4 owners reflect that: buyers who did their research tend to be satisfied, while first-time Century purchasers sometimes express surprise at fit-and-finish variation. The trigger and overall smoothness of the action are described as functional but not refined.