These brass guides protect the
crowns of firearms that have to
be cleaned from the muzzle.
Place the guide on your cleaning
rod, start your patch or
brush into the barrel, and then
slide the guide down into the
muzzle. The guide has an “O”-ring to keep
the brass guide cap off of the crown. There
is plenty of clearance on the inside diameter
of the guide to use any type of cleaning rod
(Dewey, Parker Hale, Pro-Shot, etc.). Great for lever actions.
Sinclair, Issue:3B, Page:140