yes, as long as it meets all the EIB details. and for Centurion it will need all major ROTJ details. it does not need to be based on an real MGC sterling it can be Based on a real or replica (this includes resin or hyperfirm) Sterling sub-machine gun, scratch-built
some ROTJ details not noted in the CRL
front D-ring
flat barrel muzzle
proper (solid) style scope rail