Fits the Ruger 10/22 rifle. This barrel features a 1:16 rifling twist to stabilize standard as well as high velocity 22LR ammunition. A beautiful blue fluted Ruger 10/22 barrel, 20 inches long and .920 diameter heavy contour. Also available in Stainless and Stinger models. Click Here to see all of our Ruger 10/22 Barrels.