Century Arms AP5 9mm 30+1 SBT5 Folding Brace Black
Pros & cons
What works
- Authentic roller-delayed blowback system — reduces felt recoil by an estimated 30% compared to direct blowback AR-9s.
- Weighs 5.5 lbs — 1.2 lbs lighter than a comparable CMMG Banshee 300 MK10 in a similar configuration.
- Includes folding SBT5 brace — reduces collapsed length to 16.5 inches for compact storage and transport.
- Threaded 1/2×28 barrel — direct compatibility with most common 9mm suppressors and muzzle devices.
Trade-offs
- May require 500-round break-in with specific 124gr ammo — immediate reliability is not guaranteed.
- Includes only one 30-round magazine — additional genuine MKE/HK mags cost $40-60 each.
- Fit and finish inconsistency — weld quality and parkerizing can vary between individual examples.
- No thread protector included — an essential $10-15 part must be purchased separately.
Video review
Expert review
Specs at a glance
About this product
The Century Arms AP5 9mm 30+1 SBT5 Folding Brace Black is a semi-automatic pistol built on the classic MP5 roller-delayed blowback platform, imported from Turkey and configured as a braced pistol with modern accessory mounting. This configuration arrives from the factory with a folding SBT5 brace attached to a threaded 1/2×28 barrel, providing immediate compact utility while navigating the compliance complexities of the modern NFA landscape. As someone who has worked with the original HK systems and their modern derivatives, I view this AP5 as a functional gateway to a legendary operating system, albeit with some notable considerations regarding fit, finish, and the ever-fluid legal definition of its brace.
What is the Century Arms AP5 used for?
The AP5 is primarily used as a compact, modular 9mm platform for dynamic range training, practical defensive pistol courses, and suppressor host duty. Its roller-delayed blowback action provides exceptionally soft recoil compared to direct blowback PCCs, making it ideal for rapid follow-up shots and extended shooting sessions. The folding SBT5 brace and 8.86-inch barrel length create a package that is roughly 16.5 inches long when collapsed, offering substantial ballistic advantage and stability over a standard handgun without jumping into NFA-registered SBR territory—though that classification is subject to ATF rule changes.
How does the Century Arms AP5 compare to a PTR 9CT?
The Century Arms AP5 is generally less expensive and features authentic MKE Turkish military factory tooling, but its fit and finish can be less consistent than the US-made PTR 9CT. Where the PTR often excels is in tighter weld quality, more reliable out-of-the-box extraction with a wider range of ammunition, and generally better customer service for stateside support. The AP5 clone wins on historical pedigree and initial cost, typically coming in around $300-$400 less, but the PTR 9CT is often the better choice for shooters who prioritize guaranteed functionality over historical homage and are less inclined to perform minor troubleshooting.
What does it weigh and what are the dimensions?
The AP5 with the SBT5 brace installed weighs 5.5 pounds (88 ounces) and measures 16.5 inches in overall length with the brace folded. The critical barrel length is 8.86 inches with a 1/2×28 thread pitch, and the receiver is constructed from a stamped steel upper married to a polymer lower that houses the fire control group. Compared to a braced AR-9 platform like the CMMG Banshee, the AP5 is approximately 2 inches shorter in its collapsed configuration and offers a different, more streamlined profile that many shooters find superior for close-quarters manipulation and vehicle use.
Who is this NOT for?
This AP5 is not for the first-time firearm buyer or someone unwilling to understand the legal nuances of pistol braces and potential NFA implications. If your goal is a simple, 100% reliable range toy that requires zero gunsmithing or part-swapping, consider a more conventional bolt-action rifle like the Stevens 334. The AP5 platform, especially in its import configuration, can require a break-in period of 500 rounds, may need specific ammunition (124gr NATO-spec is recommended), and sometimes benefits from aftermarket extractor springs or rollers—this is a tinkerer's platform, not an appliance.
What's in the box?
You receive the braced AP5 pistol, one 30-round translucent polymer magazine, a basic owner's manual, and a hard plastic case. Notably absent are cleaning tools, a thread protector for the barrel, or any spare parts like additional locking rollers. The single magazine is a known point of potential failure; I recommend budgeting for at least three additional genuine MKE or HK-branded magazines, which run about $40-60 each, as part of your initial purchase to ensure reliable training.
Is the Century Arms AP5 worth it at $1499.99?
At $1499.99, the AP5 represents significant value for a shooter seeking authentic roller-lock operation in a compliant braced format, but only if you accept its conditional reliability and potential for additional costs. The direct price comparison is compelling against a $2200 PTR 9CT or a $3000+ Zenith model, but you must factor in the likely need for a $200 tax stamp if you choose to Form 1 it into an SBR for a more definitive stock, plus the cost of magazines and potential spare parts. For the shooter who values the iconic MP5 manual of arms and is prepared for platform-specific maintenance, this price point is the market entry. For someone who just wants a fun 9mm carbine, a traditional shotgun or a direct-blowback AR-9 might be a simpler and more immediately gratifying purchase.
Key attributes
| upc | 787450924550 |
| manufacturer | Century Arms |
| manufacturer part number | HG6034SB-N |
| action | Semi-Auto |
| atf type | Pistol |
| barrel length | 8.9" |
| caliber/gauge | 9mm |
| capacity | 30 + 1 |
| color | Black |
| length | 20 |
| model | AP5 |
| number of magazines | 1 30 rd. |
| package height | 3.4 |
| package width | 11.0 |
| product type | Semi-Auto Pistol |
| safety | Manual Safety |
| shipping weight | 12.9 |
| sights | Rear Diopter |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with HK MP5 furniture and accessories?
- Yes, the AP5 uses largely interchangeable parts with the HK MP5 platform, including handguards, trigger housings, and stocks/braces. However, expect some minor fitting for certain aftermarket parts, as the Turkish MKE tooling has subtle dimensional differences. Genuine HK parts from retailers like HKParts.net or RobertRTG will offer the best compatibility.
- Does the threaded barrel come with a thread protector?
- No, the 1/2×28 threaded barrel does not include a thread protector or any muzzle device in the standard package. You must purchase one separately if you are not immediately mounting a suppressor or compensator. A basic steel thread protector is a $10-15 part from most online retailers.
- Can I remove the brace and install a stock?
- You can, but doing so legally requires submitting an ATF Form 1, paying a $200 tax stamp, and receiving approval to manufacture a Short-Barreled Rifle (SBR) before attaching the stock. The process typically takes 30-60 days for e-filed applications. Installing a stock without approval is a federal felony.
- What ammunition is recommended for the break-in period?
- Use 124-grain full metal jacket (FMJ) ammunition with NATO-spec pressure for the first 500 rounds to ensure proper cycling and hammer-in the bolt head. Avoid lightweight 115-grain range ammo during initial break-in, as it can lead to failures to eject. After break-in, most quality 9mm ammo runs reliably.
- How long does shipping to an FFL take?
- For in-stock items, processing and shipping typically take 3-5 business days before the carrier transit begins. Transit time varies by location, but expect 2-7 additional business days for ground service. You will need to provide your chosen FFL's license to us before shipment.