The KRISS Vector Gen II CRB is a semi-automatic rifle chambered in 10mm Auto. Its closed-bolt delayed blowback operating system redirects bolt carrier movement downward rather than straight back, which reduces felt recoil noticeably compared to conventional blowback designs. The receiver uses advanced polymer composite with a 4140 chrome molybdenum steel barrel. Overall length is 36.38 inches. 
 

Key Specifications 

• Model: Vector Gen II CRB 
• Caliber: 10mm Auto 
• Action: Semi-Automatic 
• Capacity: 10+1 rounds 
• Barrel Length: 16 inches 
• Weight: 8 lbs. 
• Finish: Black 
   

Features 

• Closed-bolt delayed blowback system for reduced recoil 
• Ambidextrous safety and controls 
• Flip-up front and rear sights, adjustable for windage and elevation 
• Polymer composite receiver; 4140 chrome molybdenum steel barrel 
• Adjustable stock

The KRISS Vector Gen II CRB in 10mm gets attention for its unusual operating system and correspondingly low recoil. Most shooters confirm that the delayed blowback design delivers on its recoil-reduction claim, and the 10mm caliber is seen as a practical middle ground between pistol cartridges and rifle rounds for home defense or range use. The adjustable stock and ambidextrous controls are noted positively.

The main friction point is 10mm ammunition cost and availability. It is less stocked than 9mm or .45 ACP, which matters for high-volume range use. A few experienced shooters find the recoil so minimal that the gun lacks the physical feedback they prefer. Overall reception is positive but niche. Buyers who specifically want the Vector's operating system and 10mm combination tend to be satisfied; those shopping primarily on cost or ammo accessibility often hesitate.