Kampfiled does a helluva job, You can also order a complete bolt from midway or PT&G that has flutes, but would only suggest this on a commplete build or something that a gunsmith will help you out on
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 762frmafr</div><div class="ubbcode-body">kampfeld customs..... http://www.kampfeldcustom.com/ </div></div> +1 Kampfeld may be out of town next couple weeks hunting. He is worth the wait.
kampfeld has done 3 of mine. I mailed him the bolt off my 7-08vls on a Friday. He installed one of his knobs and fluted the bolt. I had it back the next Friday.