Roll Pins for M&P 9?

I pulled my gun apart to do the trigger job found here:http://www.burwellgunsmithing.com/M&Ptriggerjob1.htm and my punch slipped and messed up the edge of the roll pin pretty bad. Anyone know where I can get another one? TIA.

Brownells.

http://www.brownells.com/.aspx/sid=859/schematicsdetail/M_P__Semi_Auto_

thank you so much!

one thing, the back roll pin is listed as #34, but it is blacked out and I see no reference to the part. Do you think I could get that from S&W? or are these the same pin?