Found this doc online explaining mods/info on the 51. Thought it was helpful and would pass it along. I just bought mine the other day and its in pieces right now being tailored to my liking. Im going to post some questions and pics later. Enjoy the weekend boys. Copy and paste contents below
http://docs.google.com/viewer?a=v&q...BOuhbu&sig=AHIEtbRCUEYBnGtxWnDa0quWdG_GRSH1jA
http://docs.google.com/viewer?a=v&q...BOuhbu&sig=AHIEtbRCUEYBnGtxWnDa0quWdG_GRSH1jA