Volquartsen Firearms VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads. Specifications for Volquartsen Firearms VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads: Manufacturer: Volquartsen Firearms Color: Black Barrel Length: 6 in Threads per Inch: 1/2x28 Gun Make: Ruger Gun Model: Ruger 22 Charger Weight: 10 oz Country of Origin: USA Package Contents: Volquartsen Firearms VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads What firearm models does the manufacturer say Volquartsen Firearms VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads is compatible with? The manufacturer suggests that Volquartsen Firearms VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads is compatible with Ruger 22 ChargerVolquartsen Firearms VF6-T: VF-6 Lightweight Barrel for 22 Charger 1/2 x 28 TPI Threads