The KRISS Vector CRB in MultiCam Black is a semi-automatic rifle chambered in 10mm. It runs on KRISS's delayed blowback operating system with the Super V recoil mitigation mechanism — the action redirects the bolt carrier downward rather than straight back, which cuts muzzle rise noticeably compared to a conventional blowback design. 
 

Key Specifications 

• Model: Vector CRB 
• Type: Rifle 
• Action: Semi-Auto 
• Caliber: 10mm 
• Finish: MultiCam Black 
• Barrel Length: 16" 
• Overall Length: 35.25" - 38.25" 
• Rate of Twist: 1-in-10" 
• Capacity: 15 + 1 rounds (one magazine included) 
• Sights: Low profile flip sights, adjustable 
• Weight: 8 lbs. 
• Safety: Ambidextrous 
   

Features 

• Delayed blowback system reduces felt recoil and aids reliability with follow-up shots 
• Super V recoil mitigation cuts muzzle rise during rapid fire 
• Pivoting single-stage trigger with a defined release point 
• 6-position adjustable stock for length-of-pull adjustment 
   
  10mm is a capable round for home defense and range use, though ammo is less common and costs more than 9mm or .45 ACP. The CRB's 16-inch barrel meets rifle classification requirements while keeping the platform relatively compact. The MultiCam Black finish is practical for outdoor use and more subdued than some tactical-themed colorways.

Owners of the KRISS Vector CRB in MultiCam Black tend to respond strongly to the design — the delayed blowback system and the rifle's unconventional look are the first things people mention. The Super V mechanism does what KRISS claims; recoil and muzzle rise are noticeably reduced compared to a standard blowback layout, and that translates to tighter follow-up shot groups for most shooters.

Ergonomics get generally positive marks. The adjustable stock accommodates different builds, and the ambidextrous safety works well for lefties and righties. Users find the rifle manageable even for those new to the platform.

The 10mm caliber draws mixed reactions. Fans of the round like the stopping power and the versatility across defense and range applications. The practical concern is ammunition — 10mm is available but costs more than 9mm, and not every range or rural area stocks it readily.

Reliability reports are mostly good, though there are occasional mentions of feeding issues with certain ammunition. Most of these reports center on specific brands rather than a systemic problem, and proper maintenance tends to resolve them.

Modularity is a common topic in Vector forums — optics, lights, and grip accessories are popular upgrades, and KRISS's ecosystem has grown enough that aftermarket support is reasonable.

Price is the recurring objection. The Vector CRB sits above mid-range rifle pricing, and some shooters feel the premium isn't justified. Those who focus on the system's unique engineering tend to disagree.