Century Arms AP51 Pistol 7.62×51 NATO 20-Round Black

About this product

The Century Arms AP51 is a compact PDW-style pistol chambered in 7.62×51 NATO that utilizes a stamped steel receiver and G3-pattern operating system. This firearm bridges the gap between full-size battle rifles and practical defensive weapons, offering substantial firepower in a package that measures just 22.5 inches overall. I've evaluated this platform extensively in both range training and suppressor applications, where its 1-in-12 twist barrel demonstrates consistent performance with 147-175 grain ammunition.

What is the Century Arms AP51 used for?

The AP51 serves primarily as a training platform and compact defensive weapon where 7.62×51 terminal performance is required in confined spaces. Its 20-round capacity provides sufficient ammunition for most tactical drills while the 5/8×24 threaded muzzle accommodates suppressors for hearing-safe operation. The 126.98-ounce weight keeps it manageable during extended training sessions without sacrificing the stability needed for accurate follow-up shots.

How does the Century Arms AP51 compare to the Stevens 334 Rifle?

The AP51 offers significantly more compact dimensions than the bolt-action Stevens 334 Rifle while sacrificing long-range precision. Where the Stevens 334 delivers sub-MOA accuracy at 300 yards, the AP51's 22.5-inch overall length makes it more suitable for vehicle operations and close-quarters training. The semi-automatic operation allows for rapid engagement compared to the bolt-action Stevens, though with approximately 3-4 MOA accuracy versus the Stevens' consistent sub-MOA performance.

What does it weigh and what are the dimensions?

The AP51 weighs 126.98 ounces (approximately 7.94 pounds) with an overall length of 22.5 inches and barrel length of 8 inches. This compact profile makes it notably shorter than the Stevens 334 Rifle while maintaining the same chambering. The 1-inch width at the receiver and 7.5-inch height from rail to grip bottom create a balanced package that fits standard tactical bags and vehicle racks.

Who is this NOT for?

This pistol is not ideal for hunters requiring precision beyond 200 yards or shooters seeking lightweight backpacking firearms. The 7.94-pound weight exceeds most modern AR-platform options in similar calibers, and the fixed iron sights limit optics mounting options without aftermarket adapters. Individuals unfamiliar with NFA regulations should note this configuration requires careful compliance consideration regarding stock attachments and vertical foregrips.

What's in the box?

Each AP51 ships with one 20-round steel magazine, owner's manual, and Century Arms warranty documentation. The package does not include optics, sling attachments, or cleaning kits that many shooters will need to add. Unlike the Stevens 555 Sporting package, there are no additional choke tubes or accessory rails included beyond the factory Picatinny section.

Is the Century Arms AP51 worth it at $1699.99?

At $1699.99, the AP51 occupies a specific niche where its G3-pattern reliability and 7.62×51 chambering justify the premium over smaller-caliber PDW options. The investment makes sense for shooters requiring a compact, hard-hitting platform for training or defensive applications where ammunition commonality with full-size rifles matters. For general range use or hunting applications, more conventional options like the Stevens series offer better value for most users.