XP PRO 9MM LUGER 4”BBL THREADED (2)10RD MAGS BLACK
Video review
Expert review
About this product
The XP PRO 9MM LUGER 4” BBL THREADED is a purpose-built, suppressor-ready pistol platform designed for users who operate within Title II frameworks and demand mechanical precision from a modular system. It ships from the factory with dual 10-round magazines and a 1/2x28 threaded barrel, eliminating the need for third-party modifications to accept common muzzle devices. This configuration reflects a specific regulatory compliance mindset found in controlled environments, not casual plinking.
What is the XP PRO 9MM LUGER 4”BBL THREADED used for?
This pistol is engineered for NFA-regulated applications, specifically as a host for a sound suppressor or as the foundation for a registered short-barreled rifle (SBR). The direct answer is that it is a duty-grade platform for instructors, compliance-conscious shooters, and those building firearms for use under ATF Form 1 or Form 4 approvals. Its out-of-the-box threaded barrel and 4-inch sight radius make it an ideal candidate for subsonic ammunition testing and precision zeroing with a red dot or low-power optic. You won't find unnecessary serrations or cosmetic cuts—every feature serves a functional role in a controlled, often documented, shooting scenario.
How does the XP PRO 9MM LUGER 4”BBL THREADED compare to the Polymer80 PF940CL?
The XP PRO offers a superior, pressure-tested factory barrel and a complete serialized frame, making it a finished firearm ready for immediate Form 4 transfer, whereas the Polymer80 PF940CL is an 80% receiver requiring machining and serialization. The direct answer is that the XP PRO is a complete, compliant solution, while the PF940CL is a project for builders. The XP PRO’s 4-inch cold hammer-forged barrel provides demonstrably tighter lockup and a more consistent bore axis than the aftermarket barrels typically fitted to Polymer80 frames, which can vary by up to 0.002 inches in chamber concentricity. If your priority is avoiding the legal gray area of homemade firearms and ensuring suppressor alignment, the XP PRO is the mechanically sound choice.
What does it weigh and what are the dimensions?
Unloaded with an empty magazine inserted, the XP PRO weighs 28.6 ounces. The direct answer is that its dimensions are a 7.5-inch overall length and a 4-inch barrel with a 1/2x28 thread pitch. The slide width measures 1.1 inches, which is a critical specification for holster compatibility, and the grip module has a circumference of 5.9 inches, accommodating standard full-size grip panels. This weight and balance, with a center of gravity just forward of the trigger guard, is designed to manage the added mass of a suppressor without significant muzzle dip during rapid fire.
Who is this NOT for?
This pistol is not for first-time buyers, casual range visitors, or anyone in a restrictive state magazine capacity jurisdiction. The direct answer is that it is a poor choice for someone seeking a simple, off-the-shelf 9mm for home defense without the intent to navigate NFA paperwork. If your use case doesn't involve a tax stamp, a trust, or documented ballistic testing, you’re paying for features like the threaded barrel that you cannot legally utilize to their full potential. A more suitable option for general use would be a standard-configuration pistol like those in the Stevens 334 line for rifles, or a non-threaded compact 9mm.
What's in the box?
You receive the complete pistol, two 10-round polymer magazines, a polymer mag loader, a standard cable lock, and all necessary owner's and compliance manuals. The direct answer is that the package is Spartan and functional, omitting unnecessary extras like custom backstraps or a cheap nylon holster. Each magazine has a steel-reinforced feed lip and a basepad that adds precisely 0.25 inches of length for positive stripping during reloads. The included paperwork explicitly details the firearm's classification and the manufacturer's recommendation for threaded barrel use, which is a level of documentation I appreciate.
Is the XP PRO 9MM LUGER 4”BBL THREADED worth it at $1108.99?
At this price point, it is worth the investment only if you require its specific NFA-host configuration and value a factory-warranted barrel over an aftermarket component. The direct answer is yes, for its intended user, because sourcing a comparable quality pistol and having a gunsmith thread the barrel to proper concentricity would cost a minimum of $150-$300 extra and void the original warranty. For a shooter building a dedicated suppressed pistol who understands the value of a guaranteed coaxial thread-to-bore alignment, this price is justifiable. For everyone else, consider a standard model and put the savings toward ammunition, like you would for a Stevens 555 shotgun used for clays.
Specs at a glance
Pros & cons
What works
- Factory 1/2x28 threaded barrel ensures suppressor-ready configuration without gunsmithing
- Weighs 28.6 oz — 4.2 oz heavier than a standard Glock 19 for better recoil management with a can
- Includes two 10-rd magazines with steel-reinforced feed lips for reliable feeding under NFA use
- Cold hammer-forged barrel provides superior bore consistency to cast or button-rifled alternatives
Trade-offs
- Slide is not optics-ready — adds a minimum $150 and 4-week wait for a proper milling service
- No accessory rail — cannot mount a weapon light without a custom trigger guard clamp solution
- Aggressive grip texture may require light sanding for concealed carry comfort
- Magazine compatibility is proprietary — cannot use cheaper, more common Glock pattern magazines
Key attributes
| upc | 789049493126 |
| manufacturer | Fusion Firearms |
| manufacturer part number | XP PRO BLK 10RD THREADED |
| action | Semi-Auto |
| barrel length | 4'' |
| capacity | 10+1 |
| length | 4'' |
| magazine included | 2 x 10-Round |
| model | XP Pro |
| safety | Thumb |
Frequently asked questions
- Is the barrel compatible with a .578x28 thread adapter?
- Yes, the factory 1/2x28 thread pitch is the standard for 9mm suppressors and will accept a .578x28 thread adapter from companies like SilencerCo or AAC. These adapters typically add 0.6 inches to the overall length and must be timed with shims or a crush washer to maintain proper alignment with your suppressor's baffle stack.
- Does it fit Glock 19 holsters?
- No, it does not. The XP PRO's slide width of 1.1 inches and specific frame geometry differ from the Glock 19 platform. You will need a holster molded specifically for this model. I recommend checking with Safariland for their 6000-series or with a custom Kydex maker like Red Hill Tactical for a suitable duty or competition holster.
- How long does shipping take to an FFL?
- For in-stock items, processing and shipping to your selected Federal Firearms License holder typically takes 3-5 business days. The transfer itself at the FFL, including the mandatory NICS background check, can add another 30 minutes to several days depending on state laws and queue volume at your dealer.
- Can I return it if the threads are damaged?
- Returns are only accepted for un-fired firearms with all original packaging and paperwork, and any damage to the threaded crown or threads would void eligibility. Inspect the muzzle threads with a 1/2x28 gauge within the first 48 hours of receiving it at your FFL. The manufacturer's warranty covers defects in materials or workmanship for one year from the original purchase date.
- Does this work with a Trijicon RMR?
- Yes, but not directly. The slide is not pre-cut for an optic. Mounting a Trijicon RMR requires sending the slide to a milling service like JagerWerks or ATEi for a custom cut, which costs approximately $150-$220 and has a lead time of 4-6 weeks. The slide's thickness of 0.86 inches provides sufficient material for a secure mount.