Thread your unthreaded Ruger© 10/22 barrels to 1/2-28 RH with this premium grade thread adapter. Made out of quality aluminum, simply slip this adapter over the end of your barrel, tighten the brass set screw, and that's it! Now you can mount standard 1/2-28 RH accessories on the end of your unthreaded barrel!
Inner Diameter: .619 inches (Ruger© 10/22)
Outer Threads: 1/2"-28 RH
Set Screw: 1/4"-20 Brass (Allen Type)