Springmom,
Yes, I tried to disassemble the gun without the bushing, but without total success. You can easily get the top-end off the gun without the bushing, but the guide rod, spring, and barrel remain firmly in place in the slide. I tugged, pushed, pulled, strained, cursed, etc., etc., but simply could not get them out of the slide without the bushing. And since the bushing was at my office, and the gun and I were at home, the cleaning effort was less than optimal.
Boarhunter
Ps: The moral of the the story is to keep a bushing at the office, at home, in the Jeep, etc.