There have been several discussions about ways to make the take down process a little simpler, and I tried some of those. I had a chopstick which was just the right diameter (actually almost square), and it works well. To put the pin back in, I cut the chopstick short enough to allow turning the R9 over with the chopstick section in place. The idea of a leather-covered 2 X 4 with a hole to receive the pin when it comes out was good, and that got me to thinking about another approach.
Basically, it is a board with two pegs to hold the gun in place, a hole to receive the pin, and two holes to serve as anchor points for a rod used to lever the slide back. I used a 10 inch section of decking plank (actual size 1 X 5 ˝ X 10). Pegs are ˝ inch dowel. Lever rod is 3/16 inch steel (a 3 ˝ inch 12d nail is just as good). Everything was dipped or sprayed with Plasti Dip rubberized coating. The three photos and a general description may be enough for most people. If anyone wants more detail about materials or methods, I will be glad to provide it. I will be making some improvements later.
This device makes pin removal and replacement very easy.
Photo 1: Board showing pegs; pin hole; two lever holes, with lever rod in one. And punch.
Photo 2: Gun in place, with slide levered back to create alignment for pin removal.
Photo 3: Gun in place, with slide levered back to create alignment for replacing pin.
[Can't get the photos to transfer here. I don't have photo software on my PC. The photos were on a CD and I transferred them to my C: drive. If someone can tell me how to do it, I will put up the photos. Or, if someone would be willing to post them, I can e-mail them to you.]