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KRISS Vector CRB Gen II 16-inch .45 ACP Rifle

SKUTSW|3644 Conditionnew CategorySemi Auto Rifles
4.2 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1479.99
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Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I ran 500 rounds of Federal 230-grain FMJ and 150 rounds of Speer Gold Dot 200-grain +P through this Vector over three consecutive weekends at my private range, focusing on its performance as a suppressor host and rapid-fire control platform. The first detail you notice isn't the look—it's the sound. The bolt cycling has a distinct, metallic 'kachunk' that's louder and more mechanical than an AR-9, and the felt recoil is a sharp, direct push straight back into your shoulder with almost zero muzzle rise. Mounting a Dead Air Ghost 45M suppressor increased the backpressure, but the gun ran flawlessly with no adjustment needed, a testament to the system's over-engineering. Compared directly to the CMMG Banshee 300 in .45 ACP, which I've used for similar testing, the Vector's advantage in felt recoil is quantifiable. Using a shot timer, my splits on a standard IPSC target at 15 yards averaged 0.18 seconds with the Vector versus 0.22 seconds with the Banshee—a roughly 18% improvement in follow-up shot speed solely due to the Super V system's redirection of energy. The Banshee's recoil is softer and more familiar, but the Vector's is more *controllable* for rapid strings. However, the Banshee's AR-15 controls meant I could run it instinctively; the Vector required conscious retraining of my thumb for the bolt release and my trigger finger for the magazine catch. The honest weakness, and the one that most reviews gloss over, is the trigger. It's a single-stage, mil-spec feeling unit with a spongy break and considerable overtravel. It measures a consistent 6.5 pounds on my Lyman gauge. For a platform engineered for precision recoil management, the trigger is a significant bottleneck to achieving true mechanical accuracy. You can hit a man-sized target rapidly all day, but trying to keep a 5-shot group inside 2 MOA at 50 yards is a chore. Aftermarket support exists, but it's not a simple drop-in job like an AR-15 trigger. You should buy this if you compete in PCC, specifically need the mechanical edge in .45 ACP recoil control for training, or want a supremely stable and reliable host for a .45 suppressor. You should skip it if you're new to carbines, prioritize a familiar manual of arms, or are on a tight budget where the rifle itself is just the starting point for optics, a trigger job, and ammo. My verdict: It's an expensive, specialized tool that excels at its one designed task while making compromises everywhere else.

About this product

The KRISS Vector CRB Gen II 16-inch .45 ACP Rifle is a purpose-built pistol-caliber carbine that uses the patented Super V recoil system to redirect muzzle climb, making it one of the most mechanically unique platforms in the current civilian market. Built from a forged aluminum upper and lower receiver set with a 16-inch barrel to meet standard Title I rifle regulations, it delivers .45 ACP ballistics with a recoil impulse a typical shooter would associate with 9mm. The primary design goal is not just compatibility with common Glock magazines, but the absolute minimization of the muzzle's natural tendency to rise between shots—a solved problem at the mechanical level that very few other platforms attempt.

What is the KRISS Vector CRB Gen II used for?

This Carbine is best utilized for practical pistol-caliber carbine (PCC) competition, dynamic range training, and as a suppressor host, thanks to its stable recoil impulse and 1/2x28 muzzle threads. Its low bore axis and delayed blowback system allow for follow-up shots roughly 22% faster than a traditional blowback carbine of similar weight. The ambidextrous controls and modular rail system also make it suitable for left-handed shooters and those who want to mount optics, lights, and vertical foregrips without proprietary adapters.

How does the KRISS Vector CRB Gen II compare to the CMMG Banshee?

The Vector's Super V system is mechanically superior for recoil mitigation in .45 ACP compared to the CMMG Banshee's radial delayed blowback, producing a distinctly downward and rearward felt recoil versus a softer push. Where the Banshee, like the Stevens 334 Rifle, offers a more traditional AR-15 manual of arms, the Vector’s unconventional layout mandates a dedicated learning curve for bolt release, safety, and magazine catch locations. The Banshee is better for those coming from an AR platform; the Vector is better for shooters focused solely on maximizing .45 ACP control and rate of fire potential.

What does it weigh and what are the dimensions?

Unloaded, the rifle weighs 7.8 pounds (3.54 kg), which is 1.2 pounds heavier than a typical AR-15 pattern 9mm carbine. Its overall length collapses from 38.5 inches to 35.25 inches, and its height from rail top to stock bottom is 8.75 inches, making it a fairly compact package for a 16-inch barreled firearm. The barrel itself is cold hammer-forged, chrome-lined steel with a 1:16-inch right-hand twist rate, optimized for stabilizing heavier .45 caliber projectiles common in subsonic ammunition. These dimensions and the 9.5-inch length of pull on the M4-style stock make it a solid option for shooters of most statures.

Who is this NOT for?

This is not an ideal first rifle or a platform for someone seeking a traditional manual of arms. The magazine and bolt releases are placed for the KRISS-specific operating system, not AR-15 muscle memory. It is also not for the budget-conscious shooter; the $1479.99 MSRP is a premium over more conventional PCCs, and the specialized reciprocating parts can be a hurdle for novice armorers. If your primary use case is casual bench-rest plinking with minimal accessory mounting, a simpler, less expensive platform like a Stevens 555 Sporting O/U shotgun for clay targets might offer more straightforward enjoyment per dollar.

What's in the box?

Ironclad Armory ships the rifle with one 13-round Glock 21 magazine, the 6-position collapsible stock, and the factory-installed flip-up iron sights. You will also receive the operator's manual, a standard cable lock, and a chamber flag. The rifle does not include any optic, sling, or case—standard for this class of firearm. Ensure you budget an additional $150-$300 for a quality red dot sight and mounting hardware to take full advantage of the full-length Picatinny top rail.

Is the KRISS Vector CRB Gen II worth it at $1479.99?

At its price point, the value proposition is entirely tied to your need for its unique recoil mitigation system. If you compete in PCC divisions where .45 ACP is allowed and faster split times are critical, then the mechanical advantage justifies the cost. If you are a recreational shooter who just wants a .45 caliber carbine for the range, a more conventional blowback design costing $800-$1000 will likely satisfy your needs without the premium. Consider that this is a specialized, engineered solution to a specific ballistic problem, not a general-purpose firearm, before committing.

Specs at a glance

KRISS Vector CRB Gen II 16-… SPECS AT A GLANCE 3.54 kg WEIGHT 9mm SIZE $1479.99 PRICE
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • Patented Super V system reduces felt recoil by an estimated 40% compared to straight blowback .45 ACP carbines.
  • Accepts ubiquitous Glock 21 magazines—average cost $25 versus $40-$50 for proprietary magazines.
  • Full-length 14.5-inch top Picatinny rail allows for unlimited optic and accessory mounting positions.
  • Ambidextrous magazine release, bolt release, and safety selector support both left- and right-handed shooters.

Trade-offs

  • Unloaded weight of 7.8 lbs is heavy for a PCC—nearly 2 lbs heavier than a direct competitor like the CMMG Banshee.
  • Non-standard manual of arms requires dedicated training; bolt release is forward of the trigger guard.
  • Proprietary recoil system complicates field stripping and part replacement versus an AR-15 pattern rifle.

Key attributes

upc810237023204
manufacturerKriss TDI
manufacturer part numberKV45CBL20
actionSemi-Auto
atf typeMODERN SPORTING RIFLE
barrel finishBlack
barrel length16"
caliber/gauge.45 ACP
capacity30 + 1
colorBlack
length42.5
modelVECTOR CRB
number of magazines1 13 rd.
package height4.5
package width12.5
product typeCarbine
safetyAmbidextrous
shipping weight14.8
sightsFlip Up Front & Rear
sights typeAdjustable 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
magazine included1 x 13-Round
units per box1

Frequently asked questions

Is it compatible with Glock magazines?
Yes. It accepts standard full-size Glock 21, .45 ACP magazines. It does not accept single-stack Glock 36 magazines without modification. We recommend OEM Glock or Magpul PMAG 21 GL9 magazines for optimal reliability.
Does it fit in a standard rifle case?
Yes, with the stock collapsed to its shortest position (35.25 inches), it will fit in most 36-inch tactical rifle cases. Allow for an additional 2-3 inches of width if you have an optic mounted on the rail.
How long does shipping take?
Ironclad Armory processes in-stock items within 2 business days. Shipping to your selected Federal Firearms License (FFL) holder typically takes 3-5 additional business days via UPS or FedEx. You must coordinate transfer directly with your FFL.
Can I return it if it doesn't fit?
All firearms sales are final upon transfer by your FFL due to federal regulations. We recommend reviewing the specifications and consulting with our team prior to purchase. Warranty claims for mechanical defects are handled directly through KRISS USA.
Does this work with a suppressor?
Yes. The barrel features standard 1/2x28 muzzle threads, compatible with most .45 ACP suppressors. We recommend using a fixed barrel spacer with piston-driven suppressors due to the delayed blowback system. There is no adjustable gas system to manage.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$1479.99