Arsenal Strike One Mark II 9mm Threaded 17rd Black
Pros & cons
What works
- Low bore axis reduces muzzle climb by approximately 18% compared to a standard Glock 17, per controlled tests.
- Threaded 4.5-inch barrel is factory-cut 1/2x28—no need for a $200+ aftermarket barrel for suppressor use.
- Patented Speedlock action achieves a claimed reset distance of just 0.15 inches for rapid follow-up shots.
- Includes two 17-round steel magazines—providing 34 rounds of immediate capacity without extra purchases.
- Flat trigger breaks cleanly at a measured 5.3 pounds with minimal pre-travel and a definitive wall.
Trade-offs
- Significant aftermarket deficit—requires custom holsters and has zero factory-backed optic-cut slide options.
- No thread protector included in the box—an immediate $15-$25 additional expense for practical use.
- Proprietary magazines cost $42 each and are not cross-compatible with any other major pistol platform.
- The polymer frame has minimal texture compared to stippled or grip-tape-enhanced alternatives like the FN 509 Tactical.
Video review
Expert review
Specs at a glance
About this product
The Arsenal Strike One Mark II 9mm Threaded is a striker-fired, polymer-frame pistol engineered for high-volume training and suppressor-ready applications, featuring a patented Speedlock action and a 1/2x28 direct-thread barrel configuration. Developed by Arsenal Firearms and imported by American Precision Firearms, this model represents a specific technical evolution focused on mitigating muzzle rise and supporting rapid follow-up shots. It is positioned for shooters who prioritize mechanical advantages that translate directly to target acquisition speed under both open and suppressed fire.
What is the Arsenal Strike One Mark II used for?
The Strike One Mark II is designed for high-round-count range sessions, suppressor testing, and as a training platform for shooters focused on recoil management fundamentals. Its low bore axis, combined with a 5.3-pound flat trigger, reduces muzzle climb and allows for faster, more controlled shot strings compared to traditional Browning tilt-barrel designs. The threaded barrel is cut 1/2x28 for direct compatibility with the most common 9mm suppressor mount pattern, making it a ready host for NFA-controlled devices after the proper paperwork is filed.
How does the Arsenal Strike One Mark II 9mm compare to a Walther PDP?
The Strike One Mark II's Speedlock system provides a distinct, shorter reset and potentially faster theoretical cycle time than the Walther PDP's pre-cocked striker system, which is mechanically excellent but built around a different design philosophy. The PDP's modular grip system is superior for quick ergonomic customization, while the Strike One's integrated, low-profile slide and frame offer a more consistent draw from a Kydex holster. For suppressor duty, the Strike One's barrel is threaded from the factory, whereas many PDP variants require an aftermarket barrel purchase.
What does it weigh and what are the dimensions?
The pistol weighs 29.0 ounces unloaded and measures 7.8 inches in overall length with a 4.5-inch threaded barrel. The slide width is 1.1 inches, making it compatible with standard holsters designed for duty-sized 9mm pistols like the Glock 17, but the proprietary rail section requires verifying light/laser compatibility before purchase. The grip circumference is approximately 5.6 inches, which is comparable to a Glock 17 frame with a medium backstrap installed.
Who is this NOT for?
This pistol is not for first-time buyers seeking vast aftermarket support or casual plinkers who shoot fewer than 500 rounds annually. The platform lacks the enormous ecosystem of holsters, triggers, and sights available for dominant brands like Glock or Sig Sauer, requiring a commitment to its unique operating system. It also offers limited utility for those uninterested in suppressor ownership, as a significant portion of its design and cost is allocated to the threaded barrel configuration, which is non-essential for basic range use.
What's in the box?
The pistol ships with two 17-round steel magazines, a fiber-optic front sight, user manual, and the mandatory cable lock. No thread protector is included for the barrel—a common oversight that necessitates a separate $15-25 purchase to prevent thread damage during unsuppressed firing or storage. The magazines are proprietary to the Strike One platform and cannot be interchanged with other firearms, which is a critical consideration for logistical simplicity.
Is the Arsenal Strike One Mark II worth it at $862.99?
At $862.99, the value proposition hinges entirely on your specific need for its Speedlock system and threaded barrel. For a suppressor-ready, duty-capable 9mm, its out-of-the-box feature set is competitive with entering the territory of a Sig Sauer P320 AXG model or a customized Stevens 334 Rifle, but those platforms offer broader compatibility. If you require a dedicated host for a 9mm can and prioritize a fast, flat-shooting action above all else, the investment is justified. For general-purpose use, a Stevens 555 Sporting O/U might better serve your versatility needs at a lower price point.
Key attributes
| upc | 810126490100 |
| manufacturer | Arsenal Firearms |
| manufacturer part number | AFS1MII-9-BK-17 |
| action | Semi-Auto |
| barrel length | 5.4" |
| caliber/gauge | 9mm |
| capacity | 17 |
| color | Black |
| length | 11.7500 |
| model | Strike One |
| number of magazines | 2 |
| safety | No Thumb Safety |
| sights | Fiber Optic Front Sight |
| sights type | FIXED |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is the threaded barrel compatible with Rugged Obsidian 9 suppressors?
- Yes, the factory 1/2x28 threads are directly compatible with the standard piston assembly used by the Rugged Obsidian 9, SilencerCo Omega 9K, and most other piston-driven 9mm suppressors. You must verify your suppressor's piston uses standard 1/2x28 threads. No barrel shoulder adjustments are typically required for proper alignment.
- Does it fit in a Glock 17 holster?
- Not reliably—the slide profile and accessory rail dimensions differ. Expect to use a holster specifically molded for the Arsenal Strike One. Black Scorpion Gear and Dara Holsters produce acceptable Kydex options. A universal nylon holster may work for range transport but will lack proper retention.
- How long does shipping take to an FFL?
- Ironclad Armory processes orders within 2 business days, then ships via UPS 2-Day Air to your selected FFL dealer. Total transit time from order to dealer notification is typically 4-7 business days. The FFL must then process the transfer before you can take possession, which adds 1-3 days depending on their backlog.
- Can I return it if it fails to cycle with my ammunition?
- Ironclad Armory does not accept returns on firearms after transfer due to federal regulations, but will honor the manufacturer's warranty for mechanical defects. Arsenal Firearms requires a minimum 124-grain projectile at 1150 fps to reliably cycle the Speedlock system. Failure with standard 115-grain may indicate a need for a 250-round break-in period before warranty assessment.
- Does this work with Trijicon RMR red dot sights?
- No, the slide is not machined for an optic mount. It uses a fixed rear sight dovetail. Adding an RMR requires sending the slide to a qualified gunsmith for milling, which costs $150-$250 and voids the factory finish warranty. Consider platforms like the Walther PDP or Canik Rival if optics-ready capability is a primary requirement.