KRISS Vector CRB G2 16in .45 ACP FDE Carbine
About this product
The KRISS Vector CRB G2 16in .45 ACP FDE Carbine is a pistol-caliber carbine that uses the proprietary KRISS Super V delayed blowback system to radically mitigate felt recoil and muzzle climb in a .45 ACP platform. With a 16-inch threaded barrel and a Flat Dark Earth finish, it bridges the gap between SBR practicality and Title I compliant rifle classification. Its Glock-style magazine compatibility and full-length Picatinny rails make it a versatile, high-performance option for recreational and competitive shooters seeking speed and control.
What is the KRISS Vector CRB G2 used for?
The KRISS Vector CRB G2 is primarily engineered for high-performance recreational shooting and competitive pistol-caliber carbine matches where fast, controlled follow-up shots are critical. Its 16-inch barrel provides optimal .45 ACP ballistics while keeping the system as a standard rifle, avoiding the SBR paperwork and tax stamp required for the shorter SDP model. The Super V system directly counters the heavy recoil impulse of the .45 ACP, making 2-shot Mozambique drills attainable with a center-to-center spread of under 4 inches at 15 yards in rapid fire, which most shooters cannot achieve with a standard blowback carbine like the CMMG Banshee.
How does the KRISS Vector compare to the CMMG Banshee in .45 ACP?
The KRISS Vector CRB G2 is mechanically superior in recoil management but operationally more complex than the radial-delay blowback CMMG Banshee. Where the Vector’s Super V mechanism physically redirects the bolt momentum downward to counter muzzle rise, the CMMG system uses a rotating bolt head to delay unlocking. The result is that the Vector, at 7.8 pounds, feels like you’re shooting 9mm, with measured peak recoil force reduced by approximately 40% compared to the 6.5-pound Banshee. However, the Banshee’s AR-style manual of arms is more familiar to most shooters and can be faster to field-strip for cleaning.
What does it weigh and what are the dimensions?
Unloaded, without an optic or magazine, this carbine weighs 7.8 pounds (3.54 kg). Its overall length is 38.5 inches (978 mm) with the 6-position M4-style stock fully extended and 35.25 inches (895 mm) when fully collapsed. The 16-inch (406 mm) barrel is threaded 5/8x24 and finished in black nitride for corrosion resistance. If you handle the Stevens 334 in .308 Win, at about 6.9 pounds, you’ll immediately notice the Vector’s weight is concentrated forward of the magwell, a distinct balance point that stabilizes rapid fire but requires getting used to for off-hand shooting.
Who is this NOT for?
This carbine is not for shooters who prioritize simple, familiar manual of arms or who have a strict aversion to field-stripping non-AR platforms. The Super V system, while brilliant, uses a dual-recoil-spring assembly and a pivoting bolt carrier that requires attention to detail during reassembly—it is not a simple upper/lower break. Additionally, the proprietary lower means you cannot swap in a traditional AR-style trigger without significant gunsmithing; you’re committed to the factory single-stage trigger, which breaks at a consistent 5.5 pounds but lacks a crisp reset compared to a Geissele SSA-E.
What's in the box?
You receive the complete carbine, one 13-round Glock 21 magazine, the collapsible M4-style stock, a manual, and a lock. KRISS does not include cleaning tools, a case, or optic mounts, so budget for those items. For a more traditional out-of-the-box experience with included accessories like choke tubes, see the package contents of the Stevens 555 Sporting O/U 12 Gauge, which typically comes with 3 chokes and a hard case.
Is the KRISS Vector worth it at $1521.99?
At $1521.99, the KRISS Vector CRB G2 justifies its price if your primary goal is achieving the flattest possible .45 ACP shooting experience without entering NFA territory. You are paying a premium of roughly $400 over a comparable blowback .45 carbine for a patented mechanical advantage that genuinely works. This is not a general-purpose plinker; it’s a purpose-built tool for fast, accurate shot strings, and for that shooter, the price represents value in realized performance, not just fit and finish.
Specs at a glance
Video review
Pros & cons
What works
- Super V system reduces peak recoil force by an estimated 40% compared to straight blowback .45 carbines, enabling sub-0.5-second split times.
- 16-inch barrel provides 45 ACP velocities around 1000 fps with 230gr FMJ, optimizing the cartridge's potential while maintaining <a href="https://en.wikipedia.org/wiki/Title_II_weapons">Title I</a> rifle status.
- Full-length Picatinny rail (16.75 inches) accepts optics, IR devices, and accessories without needing to source proprietary mounts.
- Glock magazine compatibility grants immediate access to a massive aftermarket of magazines from 10-round restricted to 30-round extended capacities.
Trade-offs
- Proprietary internal design complicates aftermarket upgrades; the trigger cannot be swapped for a standard AR-15 unit without major gunsmithing.
- Weight-forward balance (approx. 60/40 front/back) feels unnatural to shooters accustomed to AR-15 center-of-gravity and requires a modified support-hand grip.
- No included hard case, and the M4-style stock has noticeable polymer-on-polymer wobble when fully extended, which some find distracting.
Expert review
Key attributes
| upc | 810237023235 |
| manufacturer | Kriss TDI |
| manufacturer part number | KV45-CFD20 |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel finish | Black Nitride |
| barrel length | 16" |
| caliber/gauge | .45 ACP |
| capacity | 30 + 1 |
| color | Flat Dark Earth |
| length | 43 |
| model | VECTOR CRB |
| number of magazines | 1 30 rd. |
| package height | 4.1 |
| package width | 10.8 |
| product type | Rifle |
| safety | Ambidextrous |
| shipping weight | 14.75 |
| sights | Low Profile Flip Sights |
| sights type | Adjustable Sights |
| 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 |
| units per box | 1 |
Frequently asked questions
- Is it compatible with all Glock 21 magazines?
- Yes, it accepts any standard Glock 21 magazine (Gen 3-5) or aftermarket Glock-pattern .45 ACP magazine. Third-party mags with extended baseplates may alter the balance, and high-capacity drums like the Kriss Vector-specific 30-round magazine require the proper clearance for cycling, which this CRB model has with its 16-inch barrel.
- Does it come with a California-compliant magazine?
- No. This model ships with one standard 13-round magazine. Customers in states with capacity restrictions will need to source compliant 10-round magazines separately. Ironclad Armory ships to FFLs in compliant states but does not modify magazines before shipment.
- What is the thread pitch for the barrel?
- The 16-inch barrel is threaded 5/8x24, which is the standard pitch for .45 caliber suppressors and muzzle devices. The thread protector is installed from the factory. Always verify concentricity with a suppressor alignment rod before attaching any suppressor or compensator.
- How long does it take to field-strip for cleaning?
- A competent field strip for basic bore and bolt face cleaning takes approximately 90 seconds once you’re familiar with the procedure. Full takedown to remove the dual recoil springs and trigger pack adds another 2-3 minutes. It is not as fast as an AR-15 but is more straightforward than many European sporting shotguns.
- Can this rifle accept a binary trigger?
- No. The Vector platform uses a proprietary fire control group. Aftermarket options like the DoubleTap trigger from Fostech are available but are classified as machine gun conversion devices by the ATF and are illegal to install without appropriate Federal licensing (07/02 FFL with SOT). This rifle ships with a standard semi-automatic trigger only.