pitmanr2003 Posted February 21, 2010 Report Share Posted February 21, 2010 i just purchased the screw upgrade and finished all of it except of the bolt carrier torx screws being i didnt have the right size. what size are the 4 smaller ones and the one bigger one on the top of bolt. Then i can go to lowes or somewhere and just buy the right ones. Quote Link to comment Share on other sites More sharing options...
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