The JP CTR-02 upper receiver is the perfect answer for your special build and will mount up to any forged lower receiver and most billet lowers to give that very robust, fully machined appearance. The receiver sides can be straight-lined for the two-tone black/silver appearance popular on many 1911 custom pistols.
This is a stripped upper receiver only. Manufactured with strict tolerances and precise exterior metal finishing from 7075 T6 aircraft-grade aluminum.
Compatible with any standard barrel extensions, bolt and carrier assemblies, and any AR-15-type charging handles and hand guards. Includes the brass deflector.