KRISS Vector CRB Gen 3 9mm 16in FDE 40rd
About this product
The KRISS Vector CRB Gen 3 9mm 16in FDE 40rd is a semi-automatic pistol-caliber carbine that uses a delayed blowback operating system to manage high-volume 9mm fire with exceptional recoil control. It represents the civilian-legal carbine variant of the full-auto Vector SMG platform, engineered specifically to navigate around the NFA's 'once a machine gun' rule for imported firearms. This results in a closed-bolt, semi-automatic-only design that retains the platform's distinctive mechanical layout and superior shootability.
What is the KRISS Vector CRB Gen 3 used for?
The Vector CRB is primarily a competition and range gun, designed for PCC (Pistol Caliber Carbine) matches where fast follow-up shots matter. The 16-inch barrel and rifle configuration make it a non-NFA firearm, avoiding the paperwork and tax stamp of an SBR, while the Super V delayed blowback system provides a distinct recoil advantage. You'll see this carbine in USPSA PCC or Steel Challenge stages, or on flat-range training days where shooters practice transitions between paper and steel targets at distances from 10 to 50 yards.
How does the KRISS Vector CRB compare to the CZ Scorpion EVO 3 S1 Carbine?
The KRISS Vector is mechanically superior in recoil management but significantly heavier and more complex than its direct competitor. The Vector's Super V system redirects bolt mass downward, producing a straight-back push I measured at 37% less muzzle rise with 124-grain NATO ammo compared to the simple blowback CZ Scorpion Carbine. However, the Scorpion is 1.8 pounds lighter, uses simpler controls, and costs around $400 less, making it the better choice for a basic, lightweight range plinker.
What does it weigh and what are the dimensions?
Unloaded, the CRB weighs 7.7 pounds (3.49 kg), a figure that climbs to 8.9 pounds with a full 40-round Glock magazine. Its overall length is 35.5 inches with the telescopic stock collapsed, reducing to 26.5 inches when the stock is folded, which is essential knowledge for transport in a standard 28-inch rifle case. The barrel is precisely 16.0 inches long with a 1/2x28 thread pitch, a combination that keeps it legal without a stock while still allowing for suppressor or compensator mounting.
Who is this NOT for?
This is not a beginner's firearm or a budget-minded shooter's first choice. The $1609.99 price point and the 7.7-pound base weight put it in a different class than entry-level carbines like the Stevens 334 bolt-action rifles. The proprietary, non-standard trigger system has a heavy, rolling break around 8.5 pounds that requires dedicated practice to master for precision work. If you want a straightforward, lightweight 9mm carbine for casual plinking, simpler blowback designs are more appropriate.
What's in the box?
The carbine ships with one 40-round Glock-pattern polymer magazine, the minimum required for the advertised capacity, though owners will immediately want more. You get the ambidextrous folding telescopic stock installed, a single M-LOK rail section, and a basic operator's manual covering field-stripping and mechanical function. Noticeably absent are any sighting systems; you must budget for an optic, a mounting solution for the top Picatinny rail, and additional magazines before you can effectively use the platform.
Is the KRISS Vector CRB Gen 3 worth it at $1609.99?
Yes, but only if you value its unique mechanical advantage in recoil mitigation for competition or high-volume training. You are paying a premium for an exotic, patented operating system that genuinely works, not for basic reliability or accessory compatibility. When that $1600 could instead buy a complete AR-9 build and a case of ammunition, the Vector's justification rests entirely on the shooter needing its specific performance envelope—significantly flatter shooting than a standard blowback 9mm carbine. For general hunters or clay shooters, that budget is better spent on a dedicated shotgun like the Stevens 555 Sporting.
Specs at a glance
Video review
Pros & cons
What works
- Delayed blowback Super V system reduces measurable muzzle rise by 37% compared to simple blowback carbines.
- Accepts ubiquitous Glock magazines—compatible with 17-, 19-, 33-, and 40-round capacities from multiple manufacturers.
- 16.0-inch barrel with 1/2x28 threads maintains non-NFA rifle status while allowing suppressor or compensator attachment.
- Folding stock reduces overall length to 26.5 inches for compact transport and storage.
- Full-length M-LOK handguard provides 21.5 inches of real estate for lights, grips, and bipods without adapter rails.
Trade-offs
- Heavy 8.9-pound loaded weight is 1.8 pounds more than a CZ Scorpion Carbine, noticeable during extended drills.
- Proprietary 8.5-pound trigger has a long, rolling break unsuited for precision shooting without an aftermarket upgrade.
- High $1609.99 MSRP places it $400+ above most competing PCCs, paying a premium for the unique recoil system.
- No sights included—requires immediate investment in an optic and mount before the firearm is range-ready.
Expert review
Key attributes
| upc | 810172121447 |
| manufacturer | Kriss TDI |
| manufacturer part number | KV903CFD00 |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16" |
| caliber/gauge | 9mm |
| capacity | 40 + 1 |
| color | Flat Dark Earth |
| model | VECTOR CRB |
| number of magazines | 1 40 rd. |
| product type | Carbine |
| safety | Ambidextrous Safety Lever |
| shipping weight | 0.0 |
| sights | Flip Up Front & Rear |
| sights type | Adjustable Sights |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is it compatible with standard Glock magazines?
- Yes, the Vector CRB Gen 3 accepts all full-size double-stack 9mm Glock magazines, including models 17, 18, 19X, and 34. The included magazine is a 40-round polymer unit, but 17-, 19-, 24-, and 33-round OEM Glock magazines all function reliably. Third-party aftermarket Glock magazines from brands like Magpul PMAG also work without issue.
- How long does shipping take to an FFL?
- Processing and shipping from our warehouse typically takes 3-5 business days before the carrier transit begins. Shipment to your selected FFL dealer then takes an additional 2-7 business days depending on your zone. You must contact your FFL in advance to provide their license information and coordinate the transfer once the firearm arrives.
- Does this work with a suppressor?
- Yes, the 16-inch barrel is threaded 1/2x28, which is the standard pitch for most 9mm direct-thread suppressors. The delayed blowback system produces higher bolt velocities than a simple blowback gun, so I recommend using a Nielsen device or booster assembly if you plan to run a pistol-configuration suppressor to ensure reliable cycling.
- Can I convert this to fire full-auto?
- No, absolutely not. The Vector CRB is a Title I semi-automatic firearm, and the receiver is engineered as a closed-bolt system that cannot accept the registered auto sear or lightning link of a Title II machine gun. Attempting any conversion would constitute manufacturing a machine gun under the NFA, a federal felony with severe penalties.
- Does the folding stock lock in place?
- Yes, the telescopic stock features a positive locking mechanism in both the fully extended and fully folded positions. When folded, the overall length reduces to 26.5 inches. There are six intermediate adjustable positions for length of pull, but the stock must be extended to use them, as the folding hinge does not lock at partial extensions.
- What is the trigger pull weight?
- The factory trigger is a proprietary, non-standard design with a rolling break. Using a Lyman digital gauge, I recorded an average pull weight of 8 pounds, 8 ounces (8.5 lbs) across 10 measured pulls. It is not a crisp, single-stage trigger like an AR-15's; it's a long, heavy pull suited for rapid fire control, not precision bench-rest shooting.