CMMG 6.5 Grendel

[LRRPF52]

POF actually intruded on the ID of the teeth on the barrel extension for the Revolution, so there is more room for the lugs on the bolt, but that's for a .473" case head (.308 Win.)

It's a good idea to have a balance between bolt lugs and barrel extension teeth, rather than make one smaller than the other.

If you use wider bolt lugs, you are now applying more leverage during bolt thrust against the lug roots of the bolt, unless you increase the OD of the bolt body at the root. For every action, there is some other compromise.

With the CMMG Anvil frame, the hope is to continue the relationship with the customer's trust on buying complete rifles.

With 6.5 Grendel, there is a very strong argument to be made for doing that since the manufacturer can now control everything under one roof and make the gun work from the start.

The LaRue Grendel really made me a believer in that, after decades of not buying factory AR15s, and I do a lot of things during a build now that most builders have never heard of.