a friend recommended this one.....

http://www.barnesgunparts.com/reming...-760-740-.html

but theres others if you look around...i just went with that one because my buddy has a bunch from there and said he has no trouble and they worked well....



http://www.erniethegunsmith.com/catalog/i37.html

actually has directions on that site.....should be about a 30 second job...