The Kriss Vector CRB Gen III is a pistol caliber carbine chambered in .45 ACP with a 16-inch threaded barrel (.578x28 threads). It ships with a fixed stock, low-profile flip-up sights, and a 10-round magazine, and this configuration is CA compliant. 
 

Key Specifications 

• Brand: Kriss 
• Model: Vector CRB Gen III 
• Caliber: .45 ACP 
• Action: Semi Auto 
• Barrel Length: 16 in (threaded, .578x28) 
• Capacity: 10 rounds 
• Color/Finish: Flat Dark Earth (Matte) 
   

Detailed Features 

• 16-inch threaded barrel with .578x28 muzzle threads 
• Fixed stock configuration 
• Low-profile flip-up front and rear sights included 
• Ships with a 10-round magazine 
• California compliant as configured

Owners of the Vector CRB point to its unconventional operating system and notably low perceived recoil as the main draws. The Gen III refinements to the controls and overall fit get consistent positive mentions, and the FDE finish holds up well across varied conditions.

Ergonomics split the community. The grip angle and overall layout suit some shooters well and feel foreign to others, particularly those coming from more conventional carbine platforms. The fixed stock is functional, but a number of owners note they would prefer an adjustable option.

At its price the Vector CRB sits at the premium end of pistol caliber carbines, and value judgments track closely with how much a buyer prizes the unique operating system. Aftermarket support is growing but still narrower than AR-pattern options, which comes up often in longer-term owner feedback.