Are all Grendel extractors interchangeable?

[BluntForceTrauma]

Pardon the brief derail.... Once we get past all this CCP Virus mess, are there still plans to produce the previously discussed enhanced Grendel bolt for a group buy?

Everyone I talk to is going all out just to keep up with existing demand, never mind the hassle of a prototype. Anybody that seems remotely interested is giving me "token" quotes: their price per part is ridiculous and their NRE (one-time engineering fees) are unreasonable.

But I'm gonna do it when they are ready to do it.

Right now am finding the same difficulty getting someone to do an improved Mk125 bolt for 6mmARC that solves the thinned extractor claw problem....