Ruger 10/22 threaded barrel end

The ebay device says it's for 'fake suppressors' and that's what they mean. It's not accurate enough to mount a real suppressor, as previously mentioned, you would get baffle strikes with this slip-fit adapter. It's for 'visual effect' devices only: muzzle brakes, compensators and such. If you don't have a silencer just go shoot the crap out of your 10-22 and have fun. If you have a suppressor go to whomever you class III dealer recommends and get the barrel threaded. A dealer wants to sale more so they'll know who can thread it right.