The Kriss Vector SDP G3 is a semi-automatic pistol chambered in 9mm with a 5.5-inch threaded barrel. It has a polymer frame, M-LOK attachment points, and ships with a 40-round magazine. The Gen 3 configuration retains the Vector's inline operating system in a pistol format. 
 

Key Specifications 

• Brand: Kriss USA 
• Model: Vector SDP G3 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 5.5 inches 
• Capacity: 40+1 
• Color/Finish: Black 
   

Detailed Features 

• 5.5-inch threaded barrel ready for muzzle devices 
• M-LOK handguard for accessory attachment 
• Polymer frame construction 
• Ships with 40-round magazine 
• Blue/Black finish on receiver

Owners of the Vector SDP G3 often point to its unique operating system as the standout quality. The inline bolt design is said to reduce felt recoil noticeably compared to conventional semi-auto pistols in 9mm, and the all-metal upper inspires confidence in the build.

Ergonomics are a frequent talking point. The grip angle suits some shooters well but divides others, and the controls take getting used to if you're coming from a conventional pistol layout. The M-LOK rail gives owners flexibility for lights or foregrips.

The Vector SDP G3 draws consistent interest for its novelty and the threaded barrel is a common starting point for suppressor hosts. The 40-round magazine capacity gets positive reactions, though the overall package is large for a pistol and value relative to price is a recurring debate.