Description
There is nothing else on the rack that runs like a KRISS Vector. The CRB G3 in .45 ACP uses the Super V Recoil Mitigation System, a closed-bolt delayed blowback action where the bolt redirects energy downward instead of straight back into your shoulder. The result is a big-bore carbine that stays remarkably flat shot to shot, and the bore axis sitting down low near your trigger hand only helps. Pair that with a pivoting single-stage trigger and low-profile flip-up sights, and you have a 16-inch carbine that is genuinely easy to run fast.
What the Gen 3 Vector CRB Brings to the Table
The third generation is a real update, not a sticker change. The upper and lower housings were reworked for better ergonomics, and the new barrel shroud carries M-LOK slots for lights, hand stops, or whatever else you want to bolt on. The 16-inch barrel is 4140 chrome moly with a Black Nitride finish and comes threaded, so a muzzle device is an easy add. The ambidextrous telescopic stock also folds flat, which drops this from about 37 inches down to a package that fits in surprisingly compact cases. At 7.7 pounds it carries its weight well, and the Flat Dark Earth finish gives it a clean, uniform look across the whole gun.
Feeding the Vector CRB G3
This is one of the platform's best tricks: it feeds from full-size Glock-pattern .45 ACP magazines. This version ships with one 10-round magazine for a 10+1 capacity, and if you already own a G21, your mags drop right in. Between the mag compatibility, the soft-recoiling action, and the modular furniture, the CRB G3 makes a great range companion, a fun PCC option, and a solid pick for anyone who wants .45 ACP performance out of something you shoulder. Fair warning, everyone at the range is going to ask to shoot it.
Key Specifications
- Manufacturer Part Number: KV45-3CFD01
- UPC: 810172121416
- Caliber: .45 ACP
- Action: Semi-Auto, Closed-Bolt Delayed Blowback
- Capacity: 10+1
- Barrel Length: 16 inches
- Barrel Material: 4140 Chrome Moly, Black Nitride (QPQ) Finish
- Barrel Threading: .578×28 RH
- Stock: KRISS Ambidextrous Telescopic Folding Stock
- Sights: Low-Profile Flip-Up, Adjustable
- Trigger: Pivoting, Single Stage
- Handguard: Gen 3 M-LOK Barrel Shroud
- Magazine Compatibility: Full-Size Glock-Pattern .45 ACP Magazines
- Weight: 7.7 lbs
- Finish: Flat Dark Earth (FDE)
What’s Included
- KRISS Vector CRB G3 carbine
- One 10-round Glock-pattern magazine
- Owner's manual
- Cable lock
Frequently Asked Questions
What magazines does the KRISS Vector CRB G3 in .45 ACP use?
It feeds from full-size Glock-pattern .45 ACP magazines, the same ones used by the Glock 21. This model ships with a single 10-round magazine, and higher-capacity Glock mags and KRISS MagEx extensions are available on the aftermarket. If you already run a G21, your existing mags will work right out of the box.
Does the Vector CRB G3 have a threaded barrel for a suppressor?
Yes, the 16-inch 4140 chrome moly barrel is threaded .578×28 RH. Keep in mind the Gen 3 M-LOK shroud covers the muzzle area, so it needs to come off to mount a suppressor or most muzzle devices. The .45 ACP chambering is a natural fit for suppressed shooting since standard 230 grain loads are already subsonic.
How does the Super V system make the Vector shoot softer?
Instead of driving the bolt straight back like a typical blowback gun, the Vector's delayed blowback action redirects part of the recoil energy downward through a moving mass behind the magazine well. Combined with a bore axis that sits low near your trigger hand, muzzle rise and felt recoil are noticeably tamer than you would expect from a .45 ACP carbine. It is a big part of why the Vector has such a loyal following.
Does the stock on this Vector CRB G3 fold?
It does. This configuration wears the KRISS ambidextrous telescopic stock, so you can adjust length of pull and fold it flat against the receiver for storage or transport. Extended, the carbine measures roughly 37 inches, and folding the stock makes it a much easier fit in compact cases and range bags.





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