Hello! I am a gun enthusiast who has a question. Lets say there is a spy. He needs a small pistol that is concealable, and hopefully with a threaded barrel for a suppressor. A spy should not have to shoot his targets more than twice, and even so, is much better to have to only score one hit. Magazine capacity must be at least 8 rounds, and it does not matter how expensive the gun or ammo is. I dont know what claliber would be best, from my knowldedge maybe a .357 sig or .45. Please no revolvers or glocks. What gun would you recomend?