Gemtech MIST-22 Features The Gemtech MIST-22 series of Integrally Suppressed 10/22 barrels uses a patented G-Core Technology. The MIST-22 barrel is a great way to keep your rifle compact without adding the extra length of a standard suppressor. It features a 1:16 RH twist for use with commercially available bull barrel stocks. Gemtech MIST-22 Specifications Brand: Gemtech Model: MIST-22 Category: Suppressors Caliber: 22 LR Color: Black Anodized OAL: 17 NRR: 112 dB Diameter: .920 Weight: 18.80 oz