so i got bored yesterday and made a knob for my rifle. as soon as i can figure out how to post pics i will show some pics. the knob came off of a table saw that i had sitting out in the garage it was an adjustment knob that i did not need. i threw the bolt in a vise, cut off the factory one. then i drilled down the shank and tapped. ran the bolt that was attached to the knob on the table saw into the original bolt handle and whala "tacticool".