Uses AR15 magazines so no. They basically shortened an AR10 upper and BCG to give more "beef" for things like .458 SOCOM.
Edit: nvm I was talking about the Anvil. The SIX8 is something different. Given magpul still won't make 6.5 Grendel mags I have a feeling is still likely a no.
Edit: nvm I was talking about the Anvil. The SIX8 is something different. Given magpul still won't make 6.5 Grendel mags I have a feeling is still likely a no.

