Due to it's short (3 inch) barrel length all 22LR ammunition with a factory listed velocity of 1600 feet per second or less will deliver subsonic performance. G-CORE® Technology - Patented Stainless Steel G-CORE® design is durable easy to clean and light weight. Reliability - MIST-22®V delivers the same accuracy and reliability with a wide range of 22LR ammunition that customers have come to expect from the SW22 Victory design.>Silent by Design - The Gemtech® MIST-22®V is the ultimate signature suppression system designed for use on the SW22 Victory® pistol. The MIST-22®V replaces the standard barrel with a barrel/suppressor combo designed to provide superb suppression in a compact package.Specifications: Caliber: .22LR Diameter; .950" - 1.12" Overall Length: 3" - barrel / 8.95" overall length Weight: 10.9 oz. Mount Type: Fits onto the Smith & Wesson® SW22 Victory® Pistol only Tube Material: 7075-T6 Aluminum Full Auto Rated: No Tube Finish: Matte Black Cerakote