Got a 1/2-28 threaded barrel with longer-than-spec threads on it? If so,
it might cause a problem with muzzle devices and a spacer might be
This threaded spacer is .200" tall and is perfect for
using on rimfire barrels with .600" long threads so that .400" of threading is accessible. Slip one of these on and you'll have a
good-looking and functional solution.
This can also be used on any other 1/2-28 threaded barrel for spacing purposes.