The Century Arms AP5 Navy is a 9mm roller-delayed semi-automatic pistol with an 8.5-inch cold hammer-forged barrel and a stamped steel receiver finished in black lacquer over manganese phosphate. It ships with a Magpul brace, a Navy-style ambidextrous grip, and a threaded barrel with a flash hider installed. The pistol has an overall length of 19.50 inches and weighs 5.50 pounds. 
 

Key Specifications 

• Brand: Century Arms 
• Model: AP5 Navy 
• Caliber: 9mm Luger 
• Action: Semi-Auto 
• Capacity: 30+1 
• Barrel Length: 8.5 inches 
• Overall Length: 19.50 inches 
• Weight: 5.50 lbs 
• Finish: Black Lacquer over Manganese Phosphate 
• Receiver Material: Steel 
   

Detailed Features 

• The 8.5-inch barrel is cold hammer-forged and threaded 1/2x28 with a flash hider installed. 
• A stamped steel receiver and polymer lower fire control housing keep the pistol lightweight for its size. 
• Fixed front and adjustable rear sights are mounted for close-range use. 
• A Magpul BSL pistol brace and Navy-style ambidextrous grip are fitted from the factory. 
• The pistol ships with two magazines and a hard case.

The AP5 Navy pistol is popular with owners who want MP5-style ergonomics without committing to a rifle-length build, and the roller-delayed action is usually the first thing reviewers mention: it noticeably tames muzzle rise compared to a straight blowback 9mm pistol. Quality control comes up often too, with some AP5 Navy pistols running dead reliable out of the box and others needing a magazine or two to break in.

Handling with the brace attached gets generally good marks. The stamped receiver and polymer lower keep the pistol from feeling front-heavy, and the Navy-style grip stays comfortable for extended range sessions. A few owners find the rear sight slower to acquire than a standard notch sight.

On value, the AP5 Navy is often compared to pricier MP5 clones, and most owners feel it holds up well given the included brace, spare magazine, and hard case. The main gripe is parts fit: some owners report needing to hand-fit aftermarket MP5-pattern accessories rather than a straight drop-in.