An increasing number of 1911 and 2011-style pistols are using a full length guide rod that requires the insertion if a pin to capture the reverse plug during disassembly. While some guys will fashion a pin from a paper clip, our solution is more elegant and durable.
We had a bunch of pins made from stainless steel alloy spring wire. The wire is approximately 1mm thick with a 6mm leg that goes into the hole and measures 64mm overall. We include a Viton O-Ring to secure the pin against the guide rod. Insert the pin and then roll the o-ring over the pin and guide rod to hold it in place while you work.
These work great and you can afford to pick up a few at our price.