The BNL PHENIX experiment is designed for studying matter properties at ultra high temperatures and densities with heavy ion collisions, and the spin structure of the proton via polarized proton+proton collisions. A fast trigger system, based on the resistive plate chamber (RPC), is being developed for the muon arms that allows the measurement of the flavor structure of quark polarization in the proton through observation of W-bosons in proton+proton collisions at root s = 500 GeV This talk will focus on RPC R&D, production of the RPC components, and assembly of the RPC modules at BNL. Challenges of RPC integration into PHENIX will also be presented.