Pierce stopped using Cerakote some time ago, the nitride actions are super slick, and timed right, I've never handled a Nucleus, but just looking at the pics on their site I can see several features that make it incompatible with my chassis, the three lug design would probably prevent the bolt handle from lining up with the handle slot in the chassis, the boltstop location would also be an issue, and if the recoil lug and/or scope rail are integrated that would also prevent it from fitting, not sure but looks like the bolt shroud is larger than a Remington, if so that too may cause interference