The Gemtech MIST-22 series of Integrally Suppressed 10/22 barrels. Using our patented G-Core Technology we have created a lightweight easily maintained and unbelievably quiet package. The MIST-22 and MIST-22TD barrels are a great way to keep your rifle compact without adding the extra length of a standard suppressor. Both barrels use a match grade 22LR chamber. They feature a 1-16 RH Twist for use with commercially available bull barrel stocks or specifically engineered for use with the Ruger 10/22 Takedown Rifle. With either MIST-22 barrel the Absolute Sound Level is 114dB. - Caliber: 22LR - Sound Reduction: 40dB - Length 16.1 - Diameter: .920 - Twist: 1:16 RH - Weight: 1 lbs 5 oz - Materials: Aluminum - Finish: Black Isonite