The Century Arms AP5-SD is a semi-automatic pistol in 9mm with a 5.75-inch threaded barrel and a 1/2x28 thread pattern. It ships with a Magpul MP BSL brace and a faux suppressor cover, and comes with 30-round magazines in a black finish. 
 

Key Specifications 

• Brand: Century Arms 
• Model: AP5-SD 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 5.75 inches 
• Capacity: 30+1 
• Color/Finish: Black 
   

Detailed Features 

• 5.75-inch barrel with 1/2x28 threaded muzzle 
• Includes faux suppressor cover over the threaded barrel 
• Magpul MP BSL pistol brace included 
• Ships with two 30-round magazines 
• Black finish throughout

Owners of the AP5-SD tend to treat it as a more accessible alternative to German roller-delayed pistols. The Century Arms build quality gets mixed reviews; fit and finish are generally considered serviceable but not in the same class as the platforms it draws inspiration from, and opinions on the brace setup vary.

The 5.75-inch barrel with faux suppressor cover is a common configuration point for this platform. Some owners swap the faux can for an actual suppressor right away, while others keep the included setup as-is. The Magpul brace is generally well-regarded in terms of build quality.

Value is where the AP5-SD consistently wins over critics. At its price point, shooters looking for a roller-delayed 9mm pistol find the Century Arms option hard to dismiss, even if they acknowledge the trade-offs in finish and tolerances compared to higher-priced alternatives.