question about bolt face and bolt carrier group

Anyone know if a 6mmTCU will take the same size bolt and bolt carrier group from a 5.56 / 223 on the AR15 platform? Are they interchangeable?

Yes

Originally Posted by RCBS_reloader

Anyone know if a 6mmTCU will take the same size bolt and bolt carrier group from a 5.56 / 223 on the AR15 platform? Are they interchangeable?

Yes.

The parent case of the TCU is a .223.

thank you gentlemen!!