A new barrel and bolt option

[cory]

All are head spaced to the 0.136" bolt. There were just some minor variances between bolt manufacturers that the option for specific bolts was offered. As for price, due to the volume, we were able to get a little bit lower price than the 5 barrel option and the bolt was not part of the GB price and are not part of the price in the link above. You can buy the MF bolt from Mark at Precision Firearms.

This is incorrect. They're headspaced to the bolt of which the buyer selected. There are some variances which is why Dan put that note on the website.

I've actually talked to Dan about this in length over the last several weeks. He's still finalizing the details of how he'll offer them that's why I didn't say anything to this point. He may be offering them with a bolt due to the variance he has seen in the different bolts.

These variances in different bolts will hinder the progress of the Grendel. There needs to be a streamlined bolt design.