The Kriss Vector CRB Enhanced Gen II is a semi-automatic carbine chambered in .40 S&W, built around the company's delayed-blowback action. It's suited for home defense, competitive shooting, and range use. 
 

Key Specifications 

• Model: Vector CRB Enhanced Gen II 
• Manufacturer: Kriss USA 
• Caliber: .40 S&W 
• Barrel Length: 5.5 inches 
• Capacity: 15+1 rounds 
• Weight: 5.90 lbs (New in Box) 
• Finish: Black Nitride with Black Polymer Grips 
• Action Type: Semi-Auto 
• Overall Length (OAL): 16.75 inches 
• Sights: Flip Up Front & Rear 
• Muzzle Thread Pattern: 1/2"-28 tpi 
• Safety Features: Ambidextrous Safety 
   

Detailed Features 

The barrel is 4140 Chrome Moly steel with a 1:10" twist rate. Black polymer grips provide a secure hold during rapid fire. The magazine is Glock-compatible at 15+1 capacity, making replacements easy to source. Ambidextrous safety works equally well for left- and right-handed shooters. The threaded muzzle at 1/2"-28 tpi accepts suppressors or other muzzle devices. 
 

Usage Scenarios 

The Vector CRB Enhanced Gen II works well across a range of applications: 

• Home defense, where reliability under stress matters 
• Competitive shooting, where the reduced-recoil action can aid follow-up shots 
• Tactical range practice and recreational shooting

The Kriss Vector CRB Gen II in .40 S&W draws a mix of enthusiasm and criticism from owners.

The delayed blowback action is the most commonly praised feature. It noticeably reduces felt recoil and helps with control during rapid fire, which many users see as a clear advantage over conventional semi-automatic designs. The ergonomics get positive marks too; the grip and overall layout feel comfortable across different shooting styles, whether for competition or defense.

Accuracy at close to medium range is generally reported as good, and the .40 S&W caliber performs predictably. Owners also appreciate the wide range of compatible accessories. Optics, grips, and tactical gear are easy to add.

On the critical side, some users have run into reliability issues with certain ammunition types or aftermarket parts, including feeding malfunctions. This is worth noting for anyone planning to use it as a primary defense firearm. The weight and bulk are also mentioned. The Vector is not a light gun, and a few shooters find it less manageable in tight spaces compared to more compact options.

Price comes up regularly. Some owners feel the feature set justifies the cost; others think comparable performance is available for less. The unconventional appearance attracts a lot of attention at the range, which is either a draw or a non-issue depending on the buyer.