Description
Picture this: a confined hallway, low light, and the need for decisive, controllable firepower. When it comes to home defense or close-quarters applications, you need a tool that manages recoil instinctively and delivers authority with every shot. That’s the operational niche of the Kriss Vector SBR Gen II 45 ACP 5.5″ Threaded Barrel Defiance M4 Stock with Adaptor Black 13rd All NFA Rules Apply. This is a compact, NFA-regulated short-barreled rifle built on Kriss’s innovative Super V recoil mitigation system, chambered in hard-hitting .45 ACP. It features a 5.5-inch threaded barrel for suppressor or muzzle device attachment and comes equipped with a versatile Defiance M4-style stock for adjustable length of pull. Priced at $1375.30, it ships to Missouri and compliant US states.
The Kriss Vector SBR Gen II isn’t just another compact firearm; it’s a purpose-built system. The heart of its design is the Super V recoil management system, which redirects bolt energy downward instead of straight back into your shoulder. The result? You stay on target faster for follow-up shots. That 5.5-inch barrel keeps the package incredibly maneuverable, while the threaded muzzle (½x28) gives you the option to mount a suppressor or compensator to further tame the .45 ACP’s bark and flash. This isn’t a range toy—it’s a tool engineered for performance where space is limited and control is non-negotiable.
Out of the box, the Gen II platform offers significant upgrades. The ambidextrous controls, including the safety, magazine release, and bolt catch, make it adaptable for any shooter. The integrated M-LOK compatible handguard provides a solid foundation for lights, lasers, or vertical grips without adding bulk. The included Defiance M4 stock with its adaptor offers multiple cheek weld and length-of-pull positions, allowing you to tailor the fit precisely to your body and optic setup. Here’s the thing—this level of modularity means it fits out of the box for a wide range of users, requiring no gunsmithing for basic configuration.
| Specification | Detail |
|---|---|
| Caliber | .45 ACP |
| Barrel Length | 5.5 Inches (Threaded ½x28) |
| Overall Length (Stock Collapsed) | Approx. 23.5 Inches |
| Magazine Capacity | 13 Rounds (Included) |
| Operating System | Kriss Super V Delayed Blowback |
| Stock | Defiance M4 Style, Adjustable |
Pros: The primary advantage is the unparalleled recoil control for the caliber, turning fast, accurate .45 ACP strings into a reality. The compact form factor excels in tight spaces. The platform is highly modular, accepting a wide array of aftermarket AR-15 stocks and grips due to its mil-spec compatible buffer tube adapter. Magazine compatibility with common Kriss Vector and Glock 21 .45 ACP magazines ensures easy sourcing and high-capacity options.
Cons: The primary hurdle is the NFA process—this is a Short-Barreled Rifle (SBR), requiring a Form 4, tax stamp, and approval before taking possession. The unique operating system is more complex than a direct blowback, which could be a consideration for some. At just over 6.5 pounds unloaded, it has a dense, substantial feel.
So who is this for? It’s for the serious end-user who values terminal ballistics and controllability in a home defense or vehicle platform. It’s for the shooter who has navigated the NFA process before and understands the value of a registered SBR. It’s also for the enthusiast who appreciates unique, engineering-driven firearms that perform a specific task exceptionally well.
Frequently Asked Questions
Q: What does “All NFA Rules Apply” mean for this purchase?
A: This firearm is classified as a Short-Barreled Rifle (SBR) under the National Firearms Act. Purchasing it requires submitting an ATF Form 4, paying a $200 tax stamp, and receiving approval from the ATF before the firearm can be transferred to you by your local FFL. FFL transfer required for firearm purchases.
Q: Are other magazines compatible with this Vector?
A: Yes. This model ships with a 13-round magazine, but it is compatible with factory Kriss Vector extended magazines and many aftermarket Glock 21 .45 ACP magazines, offering higher capacity options that are widely available.
Q: Can the stock be changed for something else?
A: Absolutely. The included adaptor allows the use of any mil-spec AR-15 buffer tube and stock. You can easily swap the Defiance M4 stock for any other compatible stock, like a Magpul CTR or B5 Systems Bravo, to achieve your preferred fit and cheek weld.
If the concept of a compact, hyper-controllable .45 ACP platform built for serious use aligns with your needs, this Kriss Vector SBR Gen II is available at firearms-missouri.com for Missouri residents and nationwide.
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