The RAAF went with the Glock a few years ago now because their testing showed them to be, amongst other things, Pilot and Adgie(Airfield Defence Guard) proof. I watched an ADG testing one they had had problems with. When I aske dif that was unusual he said that apart from changing the springs they had done nothing to the pistol. As it was in the first group to come into Aust. for testing they had put close to 3 Million rounds through it. Thats a lot of rounds.