I am looking for a good QD mounting option to mount my Primal to both my .458 socom 5/8-32 and my 8.6 Blackout M18-1.5. I run Q plan B's on a couple of my other cans and planned to go that route but Q isn't making the larger size plan b yet so my 8.6 cherry bomb is basically a thread protector. Deadair sells both a Keymo mount in m18-1.5 .338 bore, and 5/8-24 7.62 bore mount. I planned to use a thread adaptor and bore to .465 for my .458. Here is the issue, the m18 .338 keymo mount doesnt index off of the shoulder it has to index off of the crown and according to the email response from Dead Air isn't capable of being clocked. My plan as of right now is to lathe material off the face of the mount until it clocks in the right position but I would love some input. I have the ability to direct mount but DM almost always needs tightened and a good QD mount stops that issue.