03-02-2014, 07:14 PM
tango29 Wrote:I use this one. It is recommended for Billet receivers so you don't warp the receiver.[ATTACH=CONFIG]4730[/ATTACH]
http://www.brownells.com/gunsmith-tools-...52635.aspx
Just don't use it with forged lowers as it puts excess stress on the upper receiver mounting tabs. Many forged uppers have broken with this tool...
