Although you can build a specific part number using Cree's guide, some parts may not exist. For example, you may find an XRCRED-L1-R2-M2-C or an XRCRED-L1-R2-K3-C but not an XRCRED-L1-R3-M2-B
Given that a search for your pn turns up absolutely nothing, it may be a good idea to call Cree at 919-313-5300 and find out if it even exists.