The third round of tests included the Beretta 92, the S&W 459, the Sig P226, the Ruger P85, the FN BDA (a double action HP), the Steyr GB, the Walter P88, the H&K P7 and the Colt SSP.
The requirements were 13 rounds of 9mm. Double, then single, action. Magazines that dropped free without needed to be pulled out. Safety that was also a decocker. Slide stop that locked the action open.
The 92 was selected on reliability, it went the most rounds (on average) before a malfunction. There were other tests including performance after being exposed to wet mud, dry mud, and water. Corrosion resistance, and, oddly the “firing pin energy” test which the S&W failed, despite being 100% in all of the other tests. I have a 459, by the way, and it’s a well built, very reliable and accurate pistol.
There was a great deal of controversy, and lawsuits followed the selection.
I carried a S&W 5906 (the successor to the 459) in combat in 1991. My first gun. Great pistol and ergonomically, very similar to the Beretta. We didn’t have a bunch of rules that had to be followed back then, and I simply bought my own pistol and had the parachute riggers (PR) fit up my Flight gear to carry it in a custom-made holster.
Many of my squadron mates bought the Ruger P89, the successor to the P85, and I thought the thing was ugly. I’m sure it was reliable, and it would’ve made a really good hammer once it ran out of ammo…
In 1995, I carried a 1911. The squadron with which I flew got some old inventory, I am sure the CO, or the Gunner, was a traditionalist, and preferred the 1911, and we were issued the gun by the duty officer before each flight. I carried it on an empty chamber, because we didn’t have a clearing barrel in which to safely load/unload before each flight.
I was happy with the 1911, but we had limited ammo as a result. I had 14 rounds of .45 ACP with the one spare mag we were issued, where I had 45 rounds of 9mm with my 5906 and the two magazines in a pouch that the PRs made for me. I carried that one on an empty chamber, not because I was smart enough to know about a clearing barrel, but because I really wasn’t sure what would happen in an ejection with a round in the chamber, safety, engaged or not.