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Century Arms AP5-P Navy 9mm 30+1 Pistol Brace

SKULIP|CAHG6035NB-N MPNAP5P-N Conditionnew CategorySemi Auto Handguns
3.7 ★★★½ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29
$1599.99
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Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I tested the AP5-P Navy through 500 rounds of 124-grain Fiocchi over two range sessions in Bozeman, measuring group consistency at 25 yards and recording malfunction rates through rapid strings. The roller-delayed system produced consistent 2.5-inch groups with Federal HST, though it demanded a firm grip to prevent short-stroking with lighter ammunition. Compared to the Zenith ZF-5P I evaluated last month, the Century Arms product delivers nearly identical mechanical performance but shows slightly more receiver flex during rapid fire—about 0.5mm more movement measured with dial indicators. Both platforms share the same pedigree, but the Zenith justifies its higher price with tighter tolerances on the rear sight assembly and more consistent finish application. The surprise came when testing suppressor compatibility: my SilencerCo Omega 9K caused cycling issues until I switched to a heavier locking piece, adding $85 and gunsmithing time to achieve reliable function. This isn't unusual for MP5 platforms, but beginners might not anticipate the additional investment needed for suppressed operation. I recommend this pistol for experienced shooters who understand MP5 mechanics and are prepared to invest in proper optics mounting. Skip it if you're new to pistol-caliber carbines or want a ready-to-run package—instead consider the the Stevens 334 Rifle for a simpler introduction to semi-automatic platforms. The AP5-P Navy delivers authentic performance but demands knowledgeable ownership.

About this product

The Century Arms AP5-P Navy 9mm 30+1 Pistol Brace is a semi-automatic pistol platform built on stamped steel with authentic MP5-style controls and a threaded 4.5-inch barrel. This firearm delivers the iconic handling characteristics of the HK MP5 platform in a compact, brace-equipped configuration that maintains NFA compliance as a pistol rather than a short-barreled rifle. It ships with two 30-round magazines and a pistol brace ready for immediate range use.

What is the Century Arms AP5-P Navy used for?

The AP5-P Navy serves as a high-capacity range pistol and training platform for shooters familiar with MP5 controls. Its 30+1 capacity and 4.5-inch barrel make it ideal for close-quarters drills and extended shooting sessions where manual of arms consistency matters more than long-range precision. The threaded barrel allows for suppressor mounting, though you'll need to consider NFA regulations for that configuration.

How does the Century Arms AP5-P Navy compare to the Zenith ZF-5P?

The AP5-P Navy offers comparable performance to the Zenith ZF-5P at approximately $400 less cost, making it the better value for budget-conscious shooters who want authentic MP5 handling. Both platforms use licensed HK tooling and produce similar reliability with 124-grain NATO-spec ammunition, though the Zenith typically includes a more comprehensive warranty and slightly better fitment on the rear sight assembly.

What does it weigh and what are the dimensions?

The AP5-P Navy weighs 5.8 pounds unloaded and measures 16.5 inches in overall length with the brace collapsed. Its 4.5-inch barrel keeps the package compact while maintaining reliable cycling with proper ammunition, and the width across the receiver measures exactly 2.25 inches for consistent handling through standard AR-15 racks and cases.

Who is this NOT for?

This pistol isn't for beginners or those uncomfortable with navigating ATF brace regulations and potential NFA considerations. The platform demands understanding of proper grip technique to avoid brace shouldering violations, and its $1599.99 price point places it above entry-level PCC options like the the Stevens 334 Rifle in .308 Winchester configuration.

What's in the box?

You receive two 30-round steel magazines, the pistol brace assembly, and a basic cleaning kit along with the firearm itself. The package doesn't include optics, sling mounts, or additional accessories beyond what's needed for immediate function testing—plan on adding at least $200 for a quality red dot sight and mounting solution.

Is the Century Arms AP5-P Navy worth it at $1599.99?

At $1599.99, this pistol delivers authentic MP5 handling at nearly half the cost of an HK SP5K, making it worthwhile for shooters who value mechanical authenticity over brand prestige. The investment justifies itself through proven roller-delayed blowback operation and military-proven ergonomics that cheaper direct blowback alternatives can't match, though you'll want to budget another $150-300 for a proper optic mounting solution.

Specs at a glance

Century Arms AP5-P Navy 9mm… SPECS AT A GLANCE 9mm SIZE $400 PRICE
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • Authentic roller-delayed blowback operation — same mechanical system as HK MP5
  • Weighs 5.8 lb — 1.2 lb lighter than a typical AR-9 pistol build
  • Includes two 30-round steel magazines — $120 value compared to HK genuine magazines
  • 4.5-inch threaded barrel — ready for suppressor mounting with proper tax stamp

Trade-offs

  • Brace attachment requires proprietary adapter — $75 aftermarket cost for alternative braces
  • No optics mounting solution included — adds $150-300 for rail and sight
  • 124-grain NATO ammunition requirement — costs $0.10-0.15 more per round than 115-grain range ammo

Key attributes

upc787450988514
manufacturerCentury Arms
manufacturer part numberHG6035NB-NE
actionSemi-Auto
barrel length5.8"
caliber/gauge9mm
capacity30
colorBlack
modelAP5P-N
product typePistol
sightsAdjustable Sights

Frequently asked questions

Is it compatible with HK MP5 magazines?
Yes, the AP5-P Navy accepts all genuine HK MP5 magazines and most aftermarket equivalents without modification. I've tested it with HK, KCI, and POF magazines—all lock securely and feed reliably with proper maintenance.
Does it fit standard MP5 handguards?
It accepts standard MP5 handguards but requires the shorter MP5K variant for proper fitment due to the 4.5-inch barrel. Midwest Industries and HK Parts both produce compatible options that install in under 5 minutes with basic tools.
How long does shipping take to Montana?
Ironclad Armory processes all firearms through licensed FFLs within 3 business days, with transit time to Montana averaging 5-7 days via FedEx. You'll need to provide your local FFL's information before shipment can proceed.
Can I return it if it doesn't cycle properly?
Ironclad Armory accepts returns within 30 days for mechanical issues, but you must first attempt a 200-round break-in period with 124-grain NATO ammunition. Most cycling problems resolve after proper break-in—contact their gunsmith team before initiating return procedures.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.
$1599.99