For 1911, 5" Government pistols with a reverse plug system. This is a "tool-less" option to your full length 1-piece guide rod issues. This guide rod assembly has an integral spring-loaded stop which allows for easier field stripping and disassembly of the pistol. No pins, paper clips, or extra tools are needed. Main rod is CNC machined from solid stainless steel and a black reverse plug end cap is included. A Fusion Firearms, Pro-Series, Professional Gunsmithing part.